International History: From Westphalia to the Present

A grasp of international history is indispensable to writing first-class IR answers. Theories make sense only against the historical record they purport to explain.

The early modern foundations

Peace of Westphalia (1648)

Ended the Thirty Years' War (1618-1648). Established:

• Territorial sovereignty — princes determine religion in their territory (cuius regio, eius religio).
• Equality of states.
• Non-intervention in others' internal affairs.

These principles remain the formal foundation of the state system.

Mercantilism and early empires

17th-18th centuries: Portuguese, Spanish, Dutch, British, French maritime empires; the Atlantic slave trade; East India companies. The first globalisation preceded the term.

The long nineteenth century (1789-1914)

French Revolution (1789) and Napoleonic Wars (1803-1815)

Spread of nationalism and liberal ideas. Napoleon's domination of Europe and ultimate defeat at Waterloo (1815).

Congress of Vienna (1814-1815) and Concert of Europe

Re-established conservative order under Metternich's leadership:

• Balance of power.
• Legitimacy of monarchies.
• Containment of France.
• Periodic great-power conferences.

The Concert managed European peace through periodic crises (1830, 1848, 1850s) for nearly a century.

Nationalism, unification and imperialism

• Italian unification (1861, completed 1870).
• German unification (1871) under Bismarck.
• Bismarckian system — alliances to isolate France (Three Emperors' League 1873, Dual Alliance 1879, Triple Alliance 1882).
• Scramble for Africa at the Berlin Conference (1884-85).
• British Raj established over India (formally 1858).
• US emerges as a great power; Monroe Doctrine (1823) extended.

Crisis of the system, 1890-1914

Bismarck's careful diplomacy collapsed under Kaiser Wilhelm II. Triple Entente (UK, France, Russia, by 1907) faced Triple Alliance (Germany, Austria-Hungary, Italy). Arms races, Balkan crises, Moroccan crises — the powder keg.

World War I (1914-1918)

Origins

• Long-term: alliance system, militarism, imperialism, nationalism (the MAIN causes).
• Immediate: assassination of Archduke Franz Ferdinand in Sarajevo (28 June 1914).
• Cascading mobilisations; July Crisis fails to contain.

Course

• Western and Eastern fronts; total war.
• US entry (April 1917) after unrestricted submarine warfare and Zimmermann telegram.
• Russian Revolution (October 1917); Bolshevik withdrawal at Brest-Litovsk.
• Allied victory (11 November 1918).

Treaty of Versailles (1919) and other settlements

• War guilt clause (Art. 231) — Germany responsible.
• Territorial losses; reparations.
• League of Nations — first global organisation, brainchild of Woodrow Wilson (Fourteen Points).
• Other treaties: Saint-Germain (Austria), Trianon (Hungary), Sèvres/Lausanne (Ottoman).
• US Senate rejected the Treaty; US never joined the League.

World War II (1939-1945)

Origins

• Versailles's harshness, Depression, rise of fascism.
• Hitler's Mein Kampf programme; appeasement (Munich 1938).
• Molotov-Ribbentrop Pact (August 1939).

Course

• German invasion of Poland (1 September 1939); UK and France declare war.
• Fall of France (1940); Battle of Britain.
• Operation Barbarossa (June 1941) — Germany invades USSR.
• Pearl Harbor (7 December 1941) — US enters.
• Holocaust — systematic murder of six million Jews and millions of others.
• Allied victory in Europe (8 May 1945); atomic bombings of Hiroshima (6 Aug) and Nagasaki (9 Aug); Japan surrenders (2 September 1945).
• Yalta (Feb 1945) and Potsdam (Jul-Aug 1945) shape post-war order.

Toll

• ~70-85 million deaths.
• Mass displacements.
• European powers exhausted; US and USSR emerge as superpowers.

The Cold War (1947-1991)

Origins

• Truman Doctrine (1947), Marshall Plan (1947).
• Berlin Blockade (1948-49) and airlift.
• Communist victory in China (1949).
• NATO (1949); Warsaw Pact (1955).
• Korean War (1950-53).

Phases

• First Cold War (1947-1962): confrontation, brinkmanship, peaks with Cuban Missile Crisis (Oct 1962).
• Détente (1969-1979): SALT I and II, Helsinki Accords (1975), Nixon's visit to China (1972), Sino-American rapprochement.
• Second Cold War (1979-1985): Soviet invasion of Afghanistan (Dec 1979); Reagan's military buildup.
• End of Cold War (1985-1991): Gorbachev's glasnost and perestroika; fall of Berlin Wall (Nov 1989); German reunification (1990); dissolution of the USSR (Dec 1991).

Key events

• Cuban Missile Crisis (1962) — closest brush with nuclear war.
• Vietnam War (mid-1950s to 1975) — US defeat.
• 1971 India-Pakistan War — creation of Bangladesh.
• Iranian Revolution (1979) — overthrow of Shah; rise of Khomeini.
• Soviet-Afghan War (1979-1989) — Pakistan's role; mujahideen; rise of jihadism.

Decolonisation

The third great wave of independence swept the world after WWII:

Year	Notable independences
1947	India, Pakistan, Burma
1948	Israel, Sri Lanka
1949	Indonesia
1956	Sudan, Tunisia, Morocco
1957	Ghana — Nkrumah
1960	"Year of Africa" — 17 countries
1962	Algeria after a brutal war
1970s	Portuguese empire collapses — Mozambique, Angola
1980	Zimbabwe
1990	Namibia
1994	South Africa — end of apartheid

Non-Aligned Movement (NAM)

• Bandung Conference (1955) — Nehru, Nasser, Sukarno, Zhou Enlai.
• First NAM Summit, Belgrade (1961) — Tito, Nehru, Nasser, Sukarno.
• Sought a third way in the Cold War.

Post-Cold War order (1991-2008)

• Unipolar moment — US dominance.
• Gulf War (1990-91) — coalition defeat of Iraq's Kuwait invasion.
• Yugoslav Wars (1991-2001) — Bosnia, Kosovo; NATO intervention.
• Rwandan genocide (1994) — international failure.
• EU expansion — Maastricht (1993); euro (1999/2002); eastern enlargements (2004, 2007).
• 9/11 (2001) — war on terror; US-led intervention in Afghanistan; Iraq War (2003).
• WTO (1995), Doha Round (2001-).

Multipolar transitions (2008-present)

• Global financial crisis (2008) — challenges the Anglo-American model.
• Rise of China — accession to WTO (2001), Olympic Games (2008), BRI (2013), economic and military rise.
• Arab Spring (2010-12) — uprisings across MENA; Syrian civil war.
• Russian annexation of Crimea (2014) — return of great-power competition.
• Brexit referendum (2016) — UK departs EU (2020).
• Trump presidency (2017-21, 2025-) — disruption of multilateral order.
• COVID-19 pandemic (2020-22).
• Russia's invasion of Ukraine (2022-) — largest European war since WWII.
• Israel-Gaza war (2023-) following Hamas attacks; broader Middle East tensions.
• AI and climate as defining structural transformations.

Pakistan in international history

Pakistan's emergence and trajectory have been shaped by global currents:

• Partition (1947) in the late-colonial context.
• Alignment with the West (1950s) — SEATO 1954, CENTO 1955.
• Sino-Pakistani rapprochement from 1962.
• 1971 war and creation of Bangladesh.
• Afghan jihad (1979-89) — frontline state.
• Nuclear tests (1998) in response to India.
• Post-9/11 alliance with the US in counter-terrorism.
• CPEC (2015-) and pivot toward China.
• IMF programmes in nearly every decade since the 1980s.

Lessons

International history reveals recurring patterns:

1. Power transitions are dangerous (Thucydides Trap).
2. Great-power management requires both capability and prudence.
3. Institutions emerge after wars and crises, not before.
4. Ideologies (nationalism, communism, liberalism, Islamism) shape state behaviour as much as material power.
5. Imperialism's legacies persist long after formal decolonisation.

Mastery of these patterns equips CSS aspirants to engage rigorously with current crises — most of which echo earlier ones in striking ways.