Yemen Crisis & the Houthi-Saudi Conflict — 2026

Official angle: Global Issues — Middle East Crisis / International Security, 40 Marks. Also a strong essay theme (proxy wars, collective defence, energy chokepoints, Muslim-world security) — see the Essay Angle section below. Cross-links: Makkah Joint Defence Agreement pages (this conflict is its first real test case), Global Energy Politics (Bab al-Mandeb chokepoint), 2026 Iran War page (shared regional context), OIC/Muslim World relevance.

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Updated: 19 October 2026. Yemen is now the most active front of the wider regional war. After the 2022 truce unravelled in July, the Houthis blockaded Saudi shipping, seized the Red Sea port of Mokha (10 September) and struck Saudi cities, airports and Aramco sites. On 4–5 October Yemen's government launched Operation Dawn of Yemen with Saudi air power, and on 5 October Pakistan, Saudi Arabia and Türkiye agreed at an emergency Makkah-alliance meeting in Riyadh to rapidly deploy forces and capabilities inside the kingdom. Since then things have got worse: from 6 to 12 October Houthi missiles and drones hit Abha, Riyadh (King Khalid) and Dammam (King Fahd) airports — at least 20 killed and 370+ injured by reported tallies; on 15 October the UN Security Council condemned the strikes; on 17–18 October Egypt offered defensive help and the GCC declared an attack on Saudi Arabia an attack on all six members. Türkiye has said it will not join any offensive inside Yemen. Fighting changes daily — verify the latest before writing an exam answer, never describe the 2022 truce as still holding, and treat strike and casualty figures as one side's claim unless marked otherwise.

Quick Facts (revision card)

• Actors: Houthis (Ansar Allah, a Zaidi-Shia movement backed by Iran); Yemen's internationally recognised government led by Presidential Leadership Council chairman Rashad al-Alimi; the Saudi-led coalition; the formerly UAE-backed Southern Transitional Council (STC — dissolved in January 2026, since relaunched as the Transitional Council of South Arabia); Pakistan and Türkiye as Saudi Arabia's partners in the Makkah alliance.
• Key dates: Sanaa seized September 2014 → coalition intervenes March 2015 → UN-brokered truce April 2022 → truce collapses July 2026 → Houthi blockade of Saudi Arabia (declared 20 July 2026) → Mokha falls 10 September → Operation Dawn of Yemen 4–5 October → Makkah alliance rapid-deployment decision 5 October → Houthi airport blitz on Saudi Arabia 6–12 October → UNSC statement 15 October → Egypt and GCC back Riyadh 17–18 October.
• Numbers to remember: 73 wounded in Saudi Arabia (7–8 September, Saudi account); more than 11,400 people displaced since 3 September (UN, as of 12 September); Saudi seaborne crude exports through Bab al-Mandeb up eightfold between March and mid-July 2026 compared with 2025 (Kpler); Mokha is about 75 km from the Bab al-Mandeb Strait; coalition claims 100 fighter jets and 324 targets struck in the first phase of Dawn of Yemen (coalition claim).
• Latest numbers (to 19 October): more than 233,000 displaced inside Yemen (IOM, 18 Oct), about 121,000 of them in Taiz; at least 20 killed and 370+ injured in the 6–12 October airport attacks in Saudi Arabia (reported tallies); Riyadh's King Khalid airport hit at least 20 times since July, one strike killing about 13 (Al Jazeera); Taiz's 12 hospitals had fuel for only about four days (WHO, 18 Oct).

Answer Structure for This Topic

1. Background — who the Houthis are and how the civil war began (plus deep history: two Yemens, unification, Houthi formation, the Saleh alliance — Section 1A)
2. The 2022 truce and why it broke down in 2026
3. Timeline of the 2026 resumption (July to 19 October)
4. The Red Sea / Bab al-Mandeb dimension
5. The Makkah Joint Defence Agreement as first test case
6. International involvement
7. Humanitarian dimension
8. Pakistan's stake and position
9. Way forward
10. Conclusion

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1. Background — Origins of the Conflict

• The Houthis (formally Ansar Allah) are a Zaidi-Shia revivalist movement from Yemen's northern Saada province, in armed conflict with the Yemeni state intermittently since 2004.
• September 2014: Houthis seized the capital Sanaa, later placing President Abdrabbuh Mansur Hadi under house arrest — triggering the wider civil war.
• March 2015: A Saudi-led coalition (backed by the UAE, other Gulf states, and initially the US/UK with intelligence and logistics support) intervened militarily to restore Hadi's internationally recognized government, beginning eight years of war that killed tens of thousands and produced what the UN repeatedly called the world's worst humanitarian crisis.
• A Southern Transitional Council (STC), a UAE-backed southern secessionist movement, complicated the picture further — nominally allied with the anti-Houthi coalition but periodically clashing with Hadi-government forces over control of the south, including Aden.
• April 2022: A UN-brokered truce took hold, dramatically reducing large-scale fighting for several years even though it was never converted into a permanent peace agreement.

1A. Deep History — Two Yemens, Unification, the Saleh–Houthi Alliance and How the Houthis Formed

How Yemen was divided into North and South

• North: the Ottomans were expelled from the north in 1918 and a Zaidi imam ruled the highlands for decades. In 1962 an army coup overthrew the imamate and created the Yemen Arab Republic (YAR), sparking a civil war between royalists and republicans (Egypt backed the republicans, Saudi Arabia the royalists). The north stayed conservative and relatively Western-leaning.
• South: Britain had held a protectorate and port colony around Aden since the 19th century. It withdrew on 30 November 1967, and the south became the People's Republic of South Yemen. In 1970 it adopted a Marxist orientation as the People's Democratic Republic of Yemen (PDRY) — the only Marxist state in the Arab world, run by the Yemeni Socialist Party and aligned with the Soviet Union.
• Cold-War rivalry: for two decades the two Yemens fought border wars and skirmishes. In 1986 the south's ruling party tore itself apart in a short, bloody civil war (many thousands killed), driving the losing faction north.

Unification — 22 May 1990

• With the Cold War ending, the two states merged on 22 May 1990 as the Republic of Yemen. Ali Abdullah Saleh, president of North Yemen since 1978, became president; Ali Salim al-Baidh of the Yemeni Socialist Party became vice-president. The first free elections followed in 1993.
• The union soon cracked: economic trouble in 1991 and southern fears of northern domination led southern leaders to declare a separate Democratic Republic of Yemen on 21 May 1994. In the 1994 civil war northern forces — helped by southern units loyal to the north and Islamist fighters — won, and Aden fell on 7 July 1994.
• Legacy: many southerners felt marginalised after 1994, producing the Southern Movement and later the UAE-backed Southern Transitional Council (STC), which still demands southern independence. Saleh ruled the united country until 2012.

How the Houthis formed

• Who they are: Zaidis are a Shia sect strongly associated with the northern highlands around Saada. Zaidi imams ruled there for centuries, so the 1962 revolution cost the old Zaidi elite its privileges. Many Zaidis also resented what they saw as the spread of Saudi-funded Salafi teaching in Saada and the government's neglect of the far north.
• 1990s — Believing Youth: a Zaidi revival movement called Believing Youth (al-Shabab al-Mu'min) emerged in Saada around 1992 (accounts differ on who founded it), running school clubs and summer camps; by 1994–95 an estimated 15,000–20,000 students had attended.
• Hussein Badreddin al-Houthi: a Zaidi cleric and former politician who became the movement's figurehead. After the 2003 US invasion of Iraq his followers adopted a slogan against the United States and Israel, reportedly influenced by Lebanon's Hezbollah. In 2004 about 800 followers were arrested in Sanaa for refusing to stop chanting it; Hussein declined Saleh's invitation to Sanaa, the government sent forces to arrest him in June 2004, and he was killed by the Yemeni army on 10 September 2004.
• After 2004: the movement took the name Houthis (from the al-Houthi family) and has been led by his brother Abdul-Malik al-Houthi; its formal name is Ansar Allah. A series of wars with Saleh's government followed (often counted as six, 2004–2010), and Saudi Arabia struck Houthi positions inside Yemen in 2009.

The Saleh–Houthi alliance — and his killing

• Which president joined the Houthis? Not Hadi, but former president Ali Abdullah Saleh. He had fought the Houthis in the Saada wars, yet after the 2011 uprising forced him to hand power to his deputy Hadi (he signed the GCC transition deal on 23 November 2011), he teamed up with his old enemies to regain influence.
• September 2014: Saleh's loyalist army units were key to the Houthi capture of Sanaa, which drove out Hadi's government and led to the 2015 Saudi-led intervention. The UN Security Council imposed an arms embargo covering the Houthis and Saleh's forces (Resolution 2216, April 2015).
• A fragile marriage of convenience: the two shared little ideology and distrusted each other. In November 2017 Saleh's party called the Houthis mercenaries, and street fighting broke out in Sanaa.
• The break: on 2 December 2017 Saleh publicly broke with the Houthis, called them a 'coup militia' and said he was ready for a 'new page' with the Saudi-led coalition, whose jets struck Houthi positions in support of his forces.
• The killing: on 4 December 2017, as he headed out of Sanaa toward his home village of Sanhan, his convoy was attacked at a checkpoint outside the capital with rocket-propelled grenades and gunfire, and he was killed at the age of 75. Houthi media called him 'the leader of treason'; his party and family described him as a martyr. Treat the exact circumstances as reported accounts.
• Aftermath: the Houthis took full control of Sanaa, and the coalition lost its hoped-for turning point. Saleh's nephew Tariq Saleh later led the National Resistance Forces on the west coast — the force involved in the Mokha fighting — and joined the Presidential Leadership Council formed in 2022 (general knowledge; verify).
• Hadi was never killed: he stayed president in exile in Riyadh until he transferred his powers in April 2022 to the Presidential Leadership Council chaired by Rashad al-Alimi.

Why this history matters for the exam

• Yemen has three fault lines: north versus south, the Zaidi highlands versus the Sunni majority and the centre, and elites versus an impoverished periphery — so the current war is not simply 'Iran versus Saudi Arabia'.
• The Saleh episode shows the Houthis' pattern of tactical alliances that they drop when it suits them — a point to cite when discussing any future ceasefire.
• The unification and the 1994 war explain why the STC and southern independence remain a separate problem inside the anti-Houthi camp.

2. Why the Truce Broke Down in 2026

• Regional trigger: the US-Israeli war on Iran, which began in late February 2026, pushed the whole region onto a war footing. The Houthis stayed largely on the sidelines in the heavy early phase, then escalated over the summer — which also served Iran's interest in pressuring an American-allied oil producer.
• The STC episode (Dec 2025 – Jan 2026): on 2 December 2025 the UAE-backed STC pushed into Hadramawt and al-Mahra and briefly held almost all of former South Yemen. Riyadh demanded a withdrawal, struck STC positions, and a Saudi-backed government counteroffensive from 2 January 2026 reversed the gains within days. The STC announced its dissolution on 9 January 2026 (some members rejected this; it has since relaunched as the Transitional Council of South Arabia), its ministers were removed from the PLC, and the UAE withdrew its remaining forces. Result: Saudi Arabia became the dominant outside power in the anti-Houthi camp — and the Saudi-UAE rift went public. Southern separatist feeling, though, did not disappear.
• 13 July 2026: the runway of Sanaa's Houthi-controlled airport was struck to stop an Iranian (Mahan Air) aircraft from landing — the immediate trigger that ended the de facto truce. Accounts differ on who struck: some reports attribute it to the Saudi air force, others to the government, and the Houthis blame Riyadh. Say "attributed to" rather than stating it as settled.
• The Houthis responded with a naval blockade against Saudi Arabia (declared 20 July 2026; the Houthis count their tanker attacks from 22 July), later warning that the blockade applies to all ships calling at Saudi ports. They justify it as retaliation for what they call a Saudi blockade of ports and airports in Houthi-held areas.
• The proxy-or-partner debate: Reuters, citing two Iranian sources, reported that Tehran told the Houthis to attack Saudi Arabia and promised more funding and weapons; an Iranian official, however, said Tehran "does not control the Houthis". Analysts note the Houthis present themselves as an Iranian partner, not a proxy, and have at times been more reckless than Tehran.

3. Timeline of the 2026 Resumption

4. The Red Sea / Bab al-Mandeb Dimension — Why This Is a Global Energy Story, Not Just a Regional War

• The Bab al-Mandeb Strait (29 km wide at its narrowest) carries roughly 7.4 million barrels of oil per day — about 7% of global petroleum output — making it one of the world's critical maritime chokepoints alongside the Strait of Hormuz.
• The Houthis have targeted Red Sea shipping since November 2023, forcing many vessels onto longer, costlier routes around the Cape of Good Hope well before this 2026 escalation.
• Critical exam point: this crisis is unfolding while the Strait of Hormuz has separately been disrupted since February 2026 by the 2026 Iran War (see that dedicated page) — analysts warn that simultaneous disruption of both straits could restrict up to 25% of global oil and gas supply, a scale of dual-chokepoint risk with no recent historical precedent.
• With Hormuz shut, the Saudi Red Sea port of Yanbu became the kingdom's main exit: Kpler data show all of Saudi Arabia's seaborne crude exports left from Yanbu in April and May 2026, and exports passing through Bab al-Mandeb rose eightfold between March and mid-July compared with 2025. Saudi Arabia partly hedged by rerouting crude through its East-West pipeline to Yanbu — shipments there surged roughly fourfold (from about 1 million to about 4 million barrels/day).
• That is exactly why the Houthi blockade bites: the group announced it would escalate attacks on Saudi tankers in the northern Red Sea, off Yanbu, after Riyadh diverted tankers north. The capture of Mokha on 10 September — about 75 km from the strait — prompted a statement, quoted by The National, that Bab al-Mandeb "can be considered under the administration of our forces" (a claim by the speaker, not a verified fact).
• Oil price: market reports linked the October strikes on Riyadh-area Aramco sites to Brent crude rising above 100 US dollars a barrel — treat as reported, and check the current price before quoting.

5. The Makkah Joint Defence Agreement — First Real Test Case

• The Makkah (Mecca) Joint Defence Agreement (signed 7 August 2026 by Saudi Arabia, Türkiye, and Pakistan — see the dedicated MJDA page for full background) contains a NATO Article 5-style clause: "an attack on any one signatory shall be regarded as an attack against them all."
• Phase 1 — warnings (8–10 September): Pakistan's Defence Minister Khawaja Asif said the pact "will become operational" if unprovoked aggression against Saudi Arabia continues, and described the Houthis as non-state actors. The Foreign Office then said no military response was under discussion, that the pact is an "umbrella agreement" under which mechanisms would be built later, that Pakistani troops were already in the kingdom, and that Pakistan would "act when the time comes". Pakistani troops, a fighter squadron and an air-defence system had been deployed to Saudi Arabia in May 2026 under the 2025 bilateral defence pact.
• Phase 2 — rhetoric hardens (September): after the attempted drone attack toward Makkah, Asif said the situation had "already arrived" for the pact to be implemented and called defending the Two Holy Mosques a religious obligation. On 25 September the military chiefs of Pakistan, Türkiye and Saudi Arabia met in Riyadh for urgent talks under the pact. Deputy PM Ishaq Dar condemned the attacks on the UNGA sidelines, and PM Shehbaz Sharif said Pakistan stands "shoulder to shoulder" with the kingdom.
• Phase 3 — activation step (5 October): at an emergency meeting in Riyadh of the Strategic Political and Defence Committee (SPDC) of the Makkah Defence Alliance — attended for Pakistan by Dar, Army Chief and Chief of Defence Forces Field Marshal Asim Munir, and Asif — the three states agreed to rapidly deploy military forces and capabilities inside Saudi Arabia, and condemned the attempted targeting of Makkah and Madinah. This is the first concrete operational decision under the pact. The joint statement says deployment will proceed under 'approved arrangements' and each country's national laws, and the committee appointed Pakistan's Lt Gen (retd) Nauman Mahmood as the alliance's first secretary-general for a three-year term. Khawaja Asif said Pakistani and Turkish forces have a presence in the operational area in a supporting role, while Saudi forces are the only ones in combat.
• Phase 4 — limits become visible (8–18 October): on 8 October Turkish FM Hakan Fidan said Türkiye will not send troops into another country to attack — the pact is defensive, and Ankara's parliament has not even ratified it yet. So the alliance is split on how far to go: Türkiye has drawn a public line, Pakistan has not, but Khawaja Asif's description (forces in theatre, supportive role, only Saudis in combat) still stands.
• The circle widens: after the airport attacks, Egypt (17 Oct) offered defensive support and the GCC (18 Oct) invoked its own joint-defence principle. In simple words, Saudi Arabia is now leaning on several overlapping security umbrellas, not just the Makkah pact.
• What has not happened (as of 19 October): no announcement of Pakistani or Turkish forces fighting inside Yemen. The deployment decision concerns Saudi territory. The pact's wording does not prescribe an automatic military response to every attack.
• The core analytical difficulty examiners reward identifying: the Houthis are a non-state actor with missile, drone, and maritime capabilities — not a conventional state aggressor — creating genuine ambiguity about what triggers a collective-defence clause designed with interstate attack in mind. Pakistan's own framing treats them as Iran-backed non-state actors, which lets it support Riyadh without declaring war on a state.
• Most likely practical contribution: defensive and supportive — air defence and counter-drone systems, intelligence-sharing, maritime surveillance, and troops on Saudi soil — rather than direct entry into the Yemen war.
• The strategic dilemma: respond too weakly and the agreement looks hollow just weeks after signing; respond by drawing the alliance directly into Yemen's civil war and risk widening a conflict none of the three signatories wants to fight directly. Pakistan also has to protect its ties with Iran, its neighbour — it has reportedly acted as a message-carrier between Riyadh and Tehran.

6. International Involvement

• Iran: backs the Houthis with missile and drone components, funding and fuel, according to Saudi, Western and (reportedly) Iranian sources; Tehran denies controlling them. The Houthi escalation also gives Iran leverage in its wider war with the US.
• Saudi Arabia: backs the internationally recognized government militarily and financially. Until 2026 it had prioritised de-escalation with the Houthis since the 2022 truce; analysts at the Foundation for Defense of Democracies read Operation Dawn of Yemen as a shift towards military confrontation. Riyadh is also pressing the UN Security Council: its ambassador said the council cannot call for de-escalation while support keeps flowing to the Houthis.
• United States: has refused Saudi requests for American airstrikes on the Houthis (Axios reported two calls from Crown Prince Mohammed bin Salman to President Trump in early September; a further request by Prince Khalid bin Salman was reported on 1 October). Trump said the Houthis had also called Washington and did not want to fight the US. This is a notable gap in the US security guarantee — and a reason Riyadh turned to Pakistan and Türkiye.
• United Kingdom: provides air-to-air refuelling to support what it calls Saudi defensive activity in support of the legitimate government, and is the UN Security Council penholder on Yemen (it requested an emergency session with Bahrain).
• UAE and Bahrain: the UAE condemned Houthi attacks on Saudi civilian and economic facilities and ships; Bahrain backed Saudi support for the government and a political solution.
• UN: the 2022 truce has not been formally declared dead but is not holding in practice. UN envoy Hans Grundberg has called the escalation "unprecedented", warned that attacks on Red Sea shipping should concern the Security Council, and argues the Yemen war must be separated from other regional conflicts so a settlement can be "defined by Yemenis".
• UN Security Council (15 Oct): a statement condemned Houthi strikes on Saudi Arabia and threats to Red Sea shipping. Yemen's government has since written to the Secretary-General asking the council to act over the attack on the Aden presidential palace.
• Egypt: President Sisi (17 Oct) said Egypt does not want to join regional wars but cannot stand by if Saudi Arabia is harmed, and offered help limited to defence. Egypt also has a direct stake — Houthi pressure on Bab al-Mandeb cuts Suez Canal income.
• GCC: the foreign ministers' statement in Manama (18 Oct) backed Saudi Arabia's right to self-defence, pushed for tighter enforcement of the UN arms embargo and urged states to list the Houthis as a terrorist organisation.
• UAE — rift and repair: after the bitter split over the STC in January, the UAE condemned the Houthi attacks and its leaders hosted the Saudi defence minister in Abu Dhabi on 18 October — a sign of Gulf ranks closing, though trust is thin.
• Iran: Riyadh accuses Tehran of encouraging the escalation; Iranian FM Abbas Araghchi says only a comprehensive political process can end the war. Treat Iran's role as contested.
• Peace track: the UN envoy and Oman still mediate, but a big prisoner swap planned for July stalled, and the UN roadmap (temporary ceasefire first, wider settlement later) has made no progress.

7. The Humanitarian Dimension

• Latest picture (18 Oct): more than 233,000 people displaced (IOM), around 121,000 in Taiz, where the Houthis are blocking the western entrance. Food prices there have reportedly risen about fivefold, cooking gas has run out, the city's 12 hospitals had fuel for about four days and no surgical supplies (WHO), and cholera is spreading.
• Saudi civilians are now paying a price too: the airport strikes killed at least 20 people, embassies told their citizens to avoid Saudi airports, and schools in Riyadh moved online.
• The Houthis still restrict aid groups in the north and have detained UN staff, which pushed the UN to move its main Yemen offices to Aden.
• More than 11,400 people were displaced between 3 and 12 September as the Houthis advanced along the western coast; UN-reported accounts describe whole villages emptied and families trapped near front lines as food ran short.
• Yemen was already among the poorest countries in the world and the UN has long described its crisis as among the worst humanitarian emergencies; renewed war, port and airport attacks (Aden airport on 7 October) and blockades threaten aid and fuel imports.
• Civilian harm is contested: the Houthis accuse Saudi Arabia of striking civilian targets, including an alleged bombing of a prison in Al Hazm that they say killed at least 11 people; Saudi Arabia says its strikes target military sites. Use "alleged" and attribute every figure.

8. Pakistan's Stake and Position

• Historically, Pakistan's 2015 Parliament unanimously declined to join the original Saudi-led coalition's combat operations in Yemen, asserting an independent foreign-policy position while maintaining strong bilateral ties with Riyadh — a useful historical contrast to cite against 2026's very different posture under the Makkah pact.
• Pakistan's current stake is now formalized and much deeper than in 2015: a treaty-level collective-defence commitment to Saudi Arabia specifically, layered on top of the 2025 Strategic Mutual Defence Agreement, the May 2026 troop deployment, and deep labour-migration/remittance ties (see the Regional & International Organizations page's GCC section).
• Islamabad's messaging has moved in steps: solidarity statements in July, a warning in early September, a "situation has arrived" statement after the Makkah drone incident, and a rapid-deployment decision on 5 October. It still avoids confirming combat entry into Yemen — consistent with the Pakistani pattern (also seen in the Iran war) of mediation, defensive support, and diplomatic weight over direct combat entanglement.
• Mid-October position: Pakistan has stuck to the 'presence in theatre, supportive role' line and has not ruled anything in or out the way Türkiye did. Now that Egypt and the GCC are also openly backing Riyadh, Pakistan is one of several Muslim states standing with Saudi Arabia rather than its lone military guarantor — which, in my reading, eases the pressure on Islamabad to go further.
• Balancing risks: Iran is Pakistan's neighbour with a long, sensitive border; sectarian sensitivities at home; economic exposure (remittances, Gulf energy) on both sides; and the risk that being seen as a combatant would erode Pakistan's mediator image earned in the 2026 US-Iran ceasefire talks.

9. Way Forward

1. Calibrate any Makkah-pact response to be genuinely defensive (air defence, intelligence, maritime security) rather than offensive entry into Yemen's civil war, preserving the pact's credibility without escalating a war none of the three signatories can easily end.
2. Pursue renewed UN-facilitated de-escalation to restore something closer to the 2022 truce conditions, given neither side has shown capacity for a decisive military victory even after more than a decade of war — and keep the Yemeni track separate from the Iran-US track, as the UN envoy urges.
3. Treat Bab al-Mandeb security as inseparable from Hormuz security in any Gulf-energy-security policy discussion, given the now-demonstrated dual-chokepoint risk.
4. Enforce the arms embargo and stop the flow of weapons to the Houthis, while protecting civilians, aid corridors and ports (Hodeidah, Aden).
5. For Pakistan specifically: clarify, ideally in coordination with Saudi Arabia and Türkiye, what concrete activation mechanisms the Makkah pact actually has — the current ambiguity is itself a strategic vulnerability — and keep a back-channel to Tehran.

Model Conclusion

The 2026 resumption of Yemen's civil war is significant for CSS purposes not only as a humanitarian and regional-security crisis in its own right, but because it has become the first live test of the Makkah Joint Defence Agreement. By 5 October the alliance had moved from warnings to a decision to deploy forces inside Saudi Arabia, even as it avoided entering Yemen itself; by mid-October the Houthi blitz on Saudi airports had pulled Egypt and the GCC into openly backing Riyadh, while Türkiye publicly ruled out an offensive role — exposing the practical ambiguity of applying a NATO-style collective-defence clause to a non-state, asymmetric threat. With Operation Dawn of Yemen under way, a Houthi blockade of Saudi oil routes, and Bab al-Mandeb operating alongside an already-disrupted Strait of Hormuz, how Pakistan, Saudi Arabia and Türkiye calibrate their response will define whether the pact is seen as a credible deterrent or a largely symbolic declaration — with direct consequences for Muslim-world security architecture and global energy security.

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Current-Affairs Angle — How to Write a 20-Mark Answer

Likely question forms: "Discuss the resurgence of conflict in Yemen and its implications for regional security"; "Is the Makkah Joint Defence Agreement a credible deterrent? Discuss in the light of the Yemen crisis"; "Analyse the strategic importance of Bab al-Mandeb for global energy security." These are my guesses about question style, not predictions of the paper.

Skeleton (about 600–700 words):

1. Intro (2–3 lines): the Yemen war reignited in July 2026 after the 2022 truce collapsed; by October it is the most active front of the regional war and the first test of the Makkah pact.
2. Causes: Iran-war spillover; Sanaa airport incident and Houthi blockade; Houthi grievances over ports and airports; Iranian backing.
3. Developments: Mokha (10 Sept), strikes on Saudi territory (73 wounded), Dawn of Yemen (4–5 Oct), Makkah alliance rapid deployment (5 Oct), airport blitz on Saudi Arabia (6–12 Oct, 20+ killed), UNSC statement (15 Oct), Egypt and GCC backing (17–18 Oct).
4. Implications: energy (Yanbu, Bab al-Mandeb, eightfold rise in Saudi exports through the strait); security (non-state actors with missiles and drones); alliance credibility; humanitarian cost.
5. Pakistan's position: treaty commitment versus 2015 neutrality; defensive support, mediation, Iran balancing.
6. Way forward and a one-line conclusion.

Add-ons that earn marks: contrast 2015 and 2026 Pakistani policy; quote the "non-state actor" ambiguity; separate claims from verified facts.

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Essay Angle — Could This Be an Essay Topic?

CSS essay questions are usually broad themes rather than a single news event, but this conflict is an excellent case study for several recurring themes. The titles below are my suggestions for practice, not predictions.

Possible essay themes this case study fits

1. "Proxy wars and the fragility of regional peace" — Houthis, Iran, Saudi Arabia, and a truce that survived four years before the wider Iran war broke it.
2. "Collective defence in the Muslim world: promise and peril" — the Makkah pact, OIC weakness, non-state actors, and the gap between treaty text and operational reality.
3. "Energy security and the geography of chokepoints" — Hormuz and Bab al-Mandeb disrupted together; Yanbu as a bypass; how one strait can hold the world economy hostage.
4. "The failure of multilateralism in protracted conflicts" — a UN-brokered truce with no political settlement behind it; Security Council statements that went unheeded.
5. "Humanitarian crises and the cost of geopolitical competition" — displacement, aid access and a population caught between regional rivals.
6. "Pakistan's foreign policy: balancing between neighbours and allies" — Saudi Arabia versus Iran, 2015 neutrality versus 2026 treaty commitment.

Ready-to-use outline (theme 2 as the example)

• Thesis: collective-defence pacts only deter if their trigger, response and political will are clear; the Yemen test shows the Makkah pact is strong on signalling but still vague on mechanism.
• Introduction hook: a pact signed on 7 August faced a live test within weeks — before the ink was dry.
• Body 1 — Why the pact exists: Gulf unease over the reliability of the US guarantee (Washington declined Saudi requests for airstrikes); Pakistan's military weight, Saudi finance, Turkish industry.
• Body 2 — The Yemen test: Houthi strikes, the Makkah drone incident, the 5 October SPDC decision to deploy forces inside Saudi Arabia.
• Body 3 — Limits and risks: non-state actor ambiguity; mission creep into Yemen; Iran-Pakistan border and sectarian balance; the OIC's record of unity statements without action.
• Counter-argument: critics say the pact is largely symbolic and drags Pakistan into a war it avoided in 2015; supporters say limited, defensive deployment is exactly what deterrence needs.
• Way forward: define response mechanisms, keep deployment defensive, keep back-channels to Tehran, support a UN-led settlement, and tie security to economic cooperation.
• Conclusion: security architecture is judged by how it handles its first crisis — Yemen is that crisis.

Evidence bank for essays (all dated; attribute claims)

• Saudi seaborne crude exports through Bab al-Mandeb rose eightfold between March and mid-July 2026 versus 2025 (Kpler).
• All Saudi seaborne crude left from Yanbu in April and May 2026 (Kpler).
• 73 wounded in Saudi Arabia on 7–8 September, the heaviest Houthi attack on Saudi soil since the truce.
• More than 11,400 displaced in Yemen between 3 and 12 September (UN).
• UN envoy Grundberg: the escalation is "unprecedented" and "dramatic".
• Pakistan's 2015 parliament declined to join the coalition; in 2026 it signed the Makkah pact and agreed on 5 October to rapid deployment inside Saudi Arabia.

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MCQs

MCQ 1 — The Houthis' formal name

The Houthi movement of Yemen is formally known as:

A) Ansar Allah

B) Al-Islah

C) Hizb al-Daawa

D) The Southern Transitional Council

Answer: A) Ansar Allah

Explanation: Ansar Allah ("Supporters of God") is the Houthis' formal name. Al-Islah is a Sunni-leaning political party, and the STC is a separate UAE-backed southern secessionist body.

MCQ 2 — Port captured in September 2026

Which Red Sea port city did the Houthis seize on 10 September 2026, bringing them about 75 km from Bab al-Mandeb?

A) Aden

B) Mokha

C) Hodeidah

D) Taiz

Answer: B) Mokha

Explanation: Mokha was long held by government-aligned forces. Hodeidah has been Houthi-held throughout the war, Aden is the government's base, and Taiz is an inland city.

MCQ 3 — Government offensive of October 2026

What is the name of the government's offensive announced on 4–5 October 2026 with Saudi air support?

A) Operation Decisive Storm

B) Operation Restoring Hope

C) Operation Dawn of Yemen

D) Operation Neptune Spear

Answer: C) Operation Dawn of Yemen

Explanation: Decisive Storm and Restoring Hope were the 2015 coalition operations. Neptune Spear was the 2011 US raid in Abbottabad.

MCQ 4 — Date of the Makkah pact

The Makkah Joint Defence Agreement was signed by Pakistan, Saudi Arabia and Türkiye on:

A) 17 September 2025

B) 7 August 2026

C) 5 October 2026

D) 20 July 2026

Answer: B) 7 August 2026

Explanation: 17 September 2025 is the Pakistan–Saudi bilateral Strategic Mutual Defence Agreement; 5 October 2026 is the emergency Riyadh meeting; 20 July 2026 is the Houthi blockade declaration.

MCQ 5 — The 5 October decision

At the emergency meeting of the Makkah alliance in Riyadh on 5 October 2026, the three states agreed to:

A) Send Pakistani and Turkish ground forces to capture Sanaa

B) Rapidly deploy forces and capabilities inside Saudi Arabia

C) Expel Iran from the OIC

D) Withdraw from the pact

Answer: B) Rapidly deploy forces and capabilities inside Saudi Arabia

Explanation: The decision concerns Saudi territory. No entry into Yemen's civil war has been announced.

MCQ 6 — Pakistan and Yemen in 2015

In 2015, Pakistan's Parliament:

A) Voted to join the Saudi-led coalition's air campaign

B) Declined to join the coalition's combat operations in Yemen

C) Recognised the Houthi government

D) Sent troops to Aden

Answer: B) Declined to join the coalition's combat operations in Yemen

Explanation: The parliamentary resolution kept Pakistan out of combat while it kept strong ties with Riyadh. This contrasts with the formal treaty commitment of 2026.

MCQ 7 — The strait

Which strait connects the Red Sea to the Gulf of Aden and the Indian Ocean and lies off Yemen?

A) Strait of Hormuz

B) Strait of Malacca

C) Bab al-Mandeb

D) Bosporus

Answer: C) Bab al-Mandeb

Explanation: Hormuz links the Persian Gulf to the Gulf of Oman. Malacca and the Bosporus are in other regions.

MCQ 8 — UN envoy

Who is the UN Special Envoy for Yemen quoted in late September 2026 describing the escalation as "unprecedented"?

A) Martin Griffiths

B) Hans Grundberg

C) Ismail Ould Cheikh Ahmed

D) António Guterres

Answer: B) Hans Grundberg

Explanation: Griffiths and Ould Cheikh Ahmed are earlier envoys. Guterres is the Secretary-General, not the Yemen envoy.

MCQ 9 — Saudi exports through the strait

According to Kpler data, Saudi seaborne crude exports through Bab al-Mandeb between March and mid-July 2026, compared with the same period in 2025, rose by about:

A) Twofold

B) Fourfold

C) Eightfold

D) Sixteenfold

Answer: C) Eightfold

Explanation: The fourfold figure on this page is a different measure — Saudi crude shipments to Yanbu via the East-West pipeline (about 1 to 4 million barrels a day). Don't mix the two.

MCQ 10 — Why the pact is hard to apply

Why does the Houthi threat make the Makkah pact's "attack on one is an attack on all" clause difficult to apply?

A) The Houthis are a non-state actor, while the clause was designed with an attack by a state in mind

B) The pact only covers naval attacks

C) The pact excludes Saudi Arabia

D) The Houthis are a member of the pact

Answer: A) The Houthis are a non-state actor, while the clause was designed with an attack by a state in mind

Explanation: The clause does not specify an automatic response, and there is ambiguity about what counts as an armed attack by an armed group backed by a third state.

MCQ 11 — Status of the 2022 truce

Which statement about the 2022 UN-brokered truce is most accurate as of October 2026?

A) It is fully holding

B) It has not been formally declared ended but is no longer holding in practice

C) It was replaced by a permanent peace treaty

D) It was never signed

Answer: B) It has not been formally declared ended but is no longer holding in practice

Explanation: Fighting, strikes on Saudi territory and a Houthi blockade have overtaken the truce; the formal collapse date is often given as 13 July 2026.

MCQ 12 — Unification of Yemen

North and South Yemen were unified as the Republic of Yemen in:

A) 1962

B) 1967

C) 1990

D) 1994

Answer: C) 1990

Explanation: Unification was proclaimed on 22 May 1990. 1962 is the northern revolution, 1967 is South Yemen's independence from Britain, and 1994 is the civil war after the south tried to secede.

MCQ 13 — South Yemen before 1990

Which description fits South Yemen (the PDRY) before unification?

A) A kingdom ruled by a Zaidi imam

B) The only Marxist state in the Arab world, centred on Aden

C) A Saudi protectorate

D) A UN trusteeship

Answer: B) The only Marxist state in the Arab world, centred on Aden

Explanation: Britain left Aden on 30 November 1967, and the south adopted a Marxist orientation in 1970 under the Yemeni Socialist Party. The Zaidi imamate was in the north and ended in 1962.

MCQ 14 — Hussein al-Houthi

Hussein Badreddin al-Houthi, after whom the Houthi movement is named, was killed by the Yemeni army in:

A) 1994

B) 2004

C) 2011

D) 2014

Answer: B) 2004

Explanation: He was killed on 10 September 2004 after refusing to be arrested; his brother Abdul-Malik took over. 2014 is the year the Houthis seized Sanaa.

MCQ 15 — Forerunner of the Houthis

The Zaidi revival organisation founded in Saada in the early 1990s, often seen as a forerunner of the Houthi movement, was called:

A) Believing Youth

B) Islah

C) The Southern Movement

D) Ansar al-Sharia

Answer: A) Believing Youth

Explanation: Believing Youth ran school clubs and summer camps to revive Zaidi teaching. Accounts differ on its founder and on Hussein al-Houthi's exact link to it. Islah is a Sunni-leaning party and the Southern Movement is a separatist current.

MCQ 16 — The president who allied with the Houthis

Which Yemeni leader allied with the Houthis in 2014, broke with them in December 2017 and was killed days later?

A) Abdrabbuh Mansur Hadi

B) Ali Abdullah Saleh

C) Ali Salim al-Baidh

D) Rashad al-Alimi

Answer: B) Ali Abdullah Saleh

Explanation: Saleh's loyalist units helped the Houthis take Sanaa. Hadi was the president they drove out, al-Baidh was the southern vice-president at unification, and al-Alimi chairs the Presidential Leadership Council.

MCQ 17 — Date of Saleh's killing

Ali Abdullah Saleh was killed on:

A) 2 December 2017

B) 4 December 2017

C) 21 September 2014

D) 10 September 2004

Answer: B) 4 December 2017

Explanation: He broke with the Houthis on 2 December 2017 and was killed two days later. 21 September 2014 is the Houthi takeover of Sanaa, and 10 September 2004 is the killing of Hussein al-Houthi.

MCQ 18 — Airports hit in October 2026

Which Saudi airports did the Houthis target in the 6–12 October 2026 attacks?

A) Abha, King Khalid (Riyadh) and King Fahd (Dammam)

B) Jeddah, Makkah and Madinah

C) Tabuk, Hail and Al-Ula

D) Taif, Yanbu and Jizan only

Answer: A) Abha, King Khalid (Riyadh) and King Fahd (Dammam)

Explanation: The Houthis told airlines to avoid all Saudi airports except those serving Makkah and Madinah, so option B is the opposite of what happened. At least 20 people were killed across the attacks.

MCQ 19 — Türkiye's stance

What did Turkish Foreign Minister Hakan Fidan say on 8 October 2026 about the Makkah pact and Yemen?

A) Türkiye will send ground troops to retake Sanaa

B) Türkiye will not send troops into another country to attack, because the pact is defensive

C) Türkiye is leaving the pact

D) Türkiye recognises the Houthi government

Answer: B) Türkiye will not send troops into another country to attack, because the pact is defensive

Explanation: Ankara drew a clear defensive line, and the agreement still needs ratification by Türkiye's parliament. Pakistan has not made an equally explicit statement.

MCQ 20 — GCC statement of 18 October

The GCC foreign ministers' statement of 18 October 2026:

A) Declared an attack on any member an attack on all and called for tighter enforcement of the UN arms embargo on the Houthis

B) Recognised the Houthis as Yemen's government

C) Expelled Oman for mediating

D) Called for the UAE's return to Yemen

Answer: A) Declared an attack on any member an attack on all and called for tighter enforcement of the UN arms embargo on the Houthis

Explanation: The ministers also urged states to designate the Houthis a terrorist organisation. Don't mix this GCC principle up with the Makkah pact, which is a separate Saudi–Pakistan–Türkiye treaty.

MCQ 21 — Fate of the STC

What happened to the Southern Transitional Council in early 2026?

A) It captured Sanaa

B) After a Saudi-backed counteroffensive it announced its dissolution on 9 January 2026

C) It merged with the Houthis

D) It won an independence referendum

Answer: B) After a Saudi-backed counteroffensive it announced its dissolution on 9 January 2026

Explanation: Its December 2025 push into Hadramawt and al-Mahra was reversed within days. Some members rejected the dissolution and the group has relaunched as the Transitional Council of South Arabia. The UAE, its backer, withdrew its remaining forces.

MCQ 22 — Displacement figure

According to the IOM, how many people had been displaced by the renewed fighting in Yemen by 18 October 2026?

A) About 11,400

B) About 82,000

C) More than 233,000

D) About 1 million

Answer: C) More than 233,000

Explanation: 11,400 was the count for 3–12 September and about 184,000 the figure as of 5 October. Always quote the date with the number.

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MCQ Traps

• The 2022 UN-brokered truce technically has not been formally declared collapsed, but is not holding in practice — a precise distinction, not a simple "truce ended" fact. The runway strike that triggered the collapse was on 13 July 2026, and who carried it out is disputed.
• Pakistan's Parliament declined to join the original 2015 Saudi-led coalition's combat operations in Yemen — don't confuse this historical non-participation with Pakistan's very different, formalized 2026 Makkah-pact commitment.
• The Houthis are a non-state actor (Ansar Allah movement), not a state — this is central to why the Makkah pact's Article-5-style clause faces genuine interpretive ambiguity in this crisis.
• The 5 October decision is rapid deployment inside Saudi Arabia, not an announced entry into Yemen.
• Bab al-Mandeb carries about 7% of global oil output (about 7.4 million barrels/day); the combined Hormuz+Bab al-Mandeb disruption risk is cited at up to 25% of global oil and gas supply — don't conflate the single-strait and combined figures.
• Eightfold (Saudi crude exports through Bab al-Mandeb) and fourfold (Yanbu shipments via the pipeline) are two different statistics.
• The Southern Transitional Council (STC) is a separate, UAE-backed southern secessionist actor — distinct from both the Houthis and the internationally recognized government.
• Houthi, Saudi and government casualty and strike figures are claims by one side unless the UN or independent sources confirm them.
• Saleh, not Hadi, allied with the Houthis in 2014 and was killed by them on 4 December 2017; Hadi was never killed and handed power to the Presidential Leadership Council in April 2022.
• Unification was 22 May 1990 (Saleh president, al-Baidh vice-president); the southern secession attempt and civil war were in 1994.
• The Houthis are named after Hussein Badreddin al-Houthi (killed 10 September 2004); his brother Abdul-Malik succeeded him — don't say Abdul-Malik founded the movement.
• South Yemen (the PDRY) was the only Marxist state in the Arab world; Britain left Aden on 30 November 1967.
• Mokha's status is disputed: the Houthis took it on 10 September; the government claimed it back on 5 October, but independent analysts said fighting was still going on. Write 'government claims to have retaken'.
• Türkiye vs Pakistan: Türkiye has publicly ruled out an offensive role in Yemen; Pakistan says its forces are in theatre in a supportive role. Don't write that 'the Makkah allies are fighting in Yemen'.
• The GCC joint-defence statement (18 Oct) and the Makkah pact (7 Aug) are different arrangements with different members.
• Displacement figures grow fast: 11,400 (12 Sept) → about 184,000 (5 Oct) → 233,000+ (18 Oct). Never quote one without its date.
• The STC was dissolved on 9 January 2026, but southern separatism is alive — rallies on 14 October show it.

Self-Test Questions

1. Trace the causal chain from the 2022 UN truce, through the Iran war and the 13 July Sanaa airport incident, to the Houthi blockade of Saudi Arabia.
2. Why does Bab al-Mandeb's disruption matter more in 2026 than it would in a year without the Strait of Hormuz also being disrupted? Use the Yanbu and eightfold figures.
3. Explain why the Houthi attacks on Saudi Arabia present a genuine interpretive challenge for the Makkah Joint Defence Agreement's collective-defence clause.
4. Contrast Pakistan's 2015 non-participation in the Saudi-led Yemen coalition with its 2026 Makkah-pact-based stake in the same conflict, including the 5 October decision.
5. What forms would Pakistani support to Saudi Arabia most likely take, and why is direct entry into the Yemen war considered unlikely?
6. Why did the US decline Saudi requests for airstrikes, and how does this explain Riyadh's reliance on Pakistan and Türkiye?
7. Write a 150-word opening paragraph for an essay on "Proxy wars and the fragility of regional peace" using the Yemen case.
8. Explain how Yemen was divided into North and South and why unification in 1990 failed to end the divide.
9. How did the Houthis form, and why was the 2004 killing of Hussein al-Houthi a turning point?
10. Why did Ali Abdullah Saleh ally with the Houthis in 2014, and what does his killing in 2017 show about the Houthis' alliances?

Things to Verify Before the Exam

• Who struck Sanaa airport on 13 July (Saudi air force or government forces) — treat as disputed.
• Whether the Houthi claims on Riyadh's King Khalid airport and Aramco sites were confirmed.
• Progress of Operation Dawn of Yemen (Mokha, Hodeidah, Taiz and the Taiz–Aden road, Marib, Sanaa) — who actually holds Mokha and Mayun Island; the front lines move daily.
• Whether Pakistani or Turkish forces deploy beyond Saudi territory, and whether Türkiye's parliament ratifies the Makkah pact.
• What Egypt's parliament approved after its 18 October emergency session, and whether Egyptian forces deploy.
• Whether the Taiz siege eases and the latest IOM displacement figure.
• Whether the US changes its no-airstrikes position.
• Any UN Security Council resolution or new ceasefire track, and the current oil price.

Sources

• Pakistan warns Mecca defense pact will activate after Houthi attacks — Al Jazeera, 9 Sept 2026
• Yemen's war is back: A new battle for Sanaa and the Red Sea — Al Jazeera, 8 Sept 2026
• Yemen's Houthis declare naval blockade of Saudi Arabia: What to know — Al Jazeera, 20 July 2026
• Yemen government is on the attack against the Houthis: what has changed — Al Jazeera, 6 Oct 2026
• Yemen's internationally recognized government launches a serious challenge to the Houthis — FDD, 7 Oct 2026
• 'Dawn of Yemen' operation to 'liberate Sanaa' — AFP via Khaleej Times, 5 Oct 2026
• Makkah alliance agrees rapid deployment in Saudi Arabia — ProPakistani
• Makkah pact activated: Will Pakistan and Turkey send forces — The Week, 6 Oct 2026
• Pakistan says situation has arrived for Makkah pact — Arab News Pakistan
• Pakistan says it will act on Makkah pact, military action not yet under discussion — Arab News Pakistan
• Pakistan condemns Houthi attacks on UNGA sidelines — Arab News Pakistan
• Houthis seize Yemen's Mokha port — The National, 10 Sept 2026
• Houthis hit Saudi Arabia with wave of strikes, wounding 73 — AFP via Ahram, 8 Sept 2026
• Houthis attack Aden airport as fighting intensifies — Reuters via Daily Maverick, 7 Oct 2026
• Yemen-based Houthi claims to attack Saudi airports — All India Radio, 7 Oct 2026
• UN envoy meets Houthi negotiators — AP via La Nación, 29 Sept 2026
• UN Security Council can't call for de-escalation while support still flows to Houthis — Arab News
• Houthis say attacked Saudi oil tanker in the Red Sea — AFP via Ahram, 5 Aug 2026
• Houthis warn all ships against calling at Saudi ports — Bloomberg via gCaptain, 21 July 2026
• Houthis say missiles targeted base in southern Saudi Arabia — AFP via Khaleej Times, 13 Sept 2026
• Yemen fighting intensifies as Houthis seize Mokha — UNI, 12 Sept 2026
• Informal truce between Saudi Arabia and Houthis on brink of collapse — The National, 15 July 2026
• The Houthis could be first big test for Mecca mutual defense pact — Responsible Statecraft
• The Mecca Joint Defense Agreement: The Makings of a New Security Architecture — Middle East Council on Global Affairs
• Mecca Joint Defence Agreement — Wikipedia
• Yemen's ex-president killed by rebels, destroying Houthi alliance — Christian Science Monitor, 4 Dec 2017
• Yemen's ex-president Saleh shot dead after switching sides — Reuters via Ahram, 4 Dec 2017
• Yemen: Ex-President Ali Abdullah Saleh killed — Al Jazeera, Dec 2017
• Yemen's Saleh killed by former allies — Long War Journal, Dec 2017
• South Yemen and North Yemen are unified — History.com
• Yemen: South Yemen conflict profile — Uppsala Conflict Data Program
• Military history of Yemen — Fanack
• Conflict in Saada governorate: analysis — The New Humanitarian, 2008
• Houthis — Wikipedia
• Pakistan, Turkey agree to rapid deployment of forces under Makkah pact — Reuters via Khaleej Times, 6 Oct 2026
• GCC condemns Houthi attacks on Saudi Arabia as Yemen fighting intensifies — Al Jazeera, 18 Oct 2026
• Saudi-led coalition intercepts drones as Egypt weighs sending help — Al Jazeera, 17 Oct 2026
• Houthi missile attack targets Riyadh for third day in a row — Al Jazeera, 12 Oct 2026
• Yemen fighting expands as Houthis attack Saudi airport again — Al Jazeera, 11 Oct 2026
• Turkey says will not send troops to fight Yemen's Houthis — AFP via ARY News, 8 Oct 2026
• Conflict in Yemen and the Red Sea — CFR Global Conflict Tracker
• Yemen 2026: STC's fall and renewed Houthi-Saudi conflict — House of Commons Library
• Yemeni government forces launch Saudi-backed counteroffensive — FDD Long War Journal, 6 Oct 2026
• Houthis take Yemen's Red Sea coast and key Bab al Mandeb islands — Long War Journal, Sept 2026
• 2025–2026 southern Yemen campaign — Wikipedia
• October 2026 Houthi attacks on Saudi Arabian airports — Wikipedia