The post-1945 to post-1991 to contemporary order
Trace the international order from 1945 bipolarity through the 1991 unipolar moment to contemporary multipolarity, with citable charters, dates and thinkers for exams.
The 1945 settlement: institutions and bipolarity
The contemporary order was architected in the closing months of World War II. The UN Charter, signed at San Francisco on 26 June 1945 and in force 24 October 1945, fixed the legal scaffolding: Article 2(1) (sovereign equality), Article 2(4) (prohibition on the threat or use of force), Article 2(7) (non-intervention), Article 51 (inherent right of self-defence), and the Article 27(3) veto vesting the five Permanent Members — the United States, United Kingdom, France, Russia (then USSR), and China — with a decisive grip on enforcement under Chapter VII. The economic order was laid at Bretton Woods (July 1944), producing the IMF and the World Bank (IBRD), with the GATT (1947) governing trade until the WTO (1995).
Bipolarity, 1945-1991
With Europe prostrate, capability concentrated in two superpowers. Kenneth Waltz, in Theory of International Politics (1979), argued that bipolarity was the most stable distribution because each pole could balance the other internally without relying on fickle allies, and miscalculation was minimised by the clarity of a two-actor system. The structural facts: the Truman Doctrine (1947) and Marshall Plan (1948) institutionalised containment; NATO (1949) and the Warsaw Pact (1955) formalised the alliance blocs; the Cuban Missile Crisis (October 1962) marked the nuclear brink that produced crisis-management norms and arms control (Partial Test Ban Treaty 1963, NPT 1968, SALT I 1972).
The non-aligned alternative
The bipolar lens omits the majority of humanity. The Bandung Conference (1955) and the Non-Aligned Movement (Belgrade, 1961) — led by Nehru, Tito, Nasser and Sukarno — articulated a third path rooted in the Panchsheel principles (1954): mutual respect for sovereignty, non-aggression, non-interference, equality, peaceful coexistence. Decolonisation roughly tripled UN membership between 1945 and 1980, embedding the sovereign-equality norm of Article 2(1) and the Montevideo Convention (1933, Article 1) statehood criteria across Asia and Africa. The G77 (1964) and demands for a New International Economic Order (UN GA Resolution 3201, 1974) carried the global-South challenge to a system whose founding moment they had not shaped.
The high-yield retention point: the post-1945 order is simultaneously institutional (Charter law and Bretton Woods) and structural (bipolar capability). Examiners reward candidates who hold both layers together rather than reducing the Cold War to a US-USSR duel.
