Confrontation in Europe: containment, Berlin and the alliances

The big idea: By 1947 the wartime allies had become rivals. The United States decided it would no longer just watch communism spread — it would actively stop it.

This policy was called containment, and it had two arms: a political promise (the Truman Doctrine) and a huge cheque (the Marshall Plan).

The trigger was Greece. A civil war there pitted the government against communist fighters, and Britain — broke after the war — told Washington in early 1947 that it could no longer help.

Rather than let Greece and neighbouring Turkey fall, President Truman went to Congress in March 1947 and asked for money and a bold new commitment.

The Truman Doctrine (1947): Truman promised that the USA would support free peoples resisting takeover — and he framed the whole world as a choice between two ways of life: free versus totalitarian.

In practice this meant $400 million in aid to Greece and Turkey. In principle it meant the USA would now fight communism anywhere it threatened to spread.

Money alone would not save Europe, though. In 1947 much of Western Europe was still in ruins — cities bombed flat, factories idle, people hungry.

American leaders feared that poverty and despair were exactly what communist parties fed on, especially in France and Italy where they were strong.

The Marshall Plan (1947–48): Named after Secretary of State George Marshall, this was the European Recovery Program: around $13 billion of US aid to rebuild Western Europe's economies.

The logic was simple — a prosperous Europe would resist communism, and a rebuilt Europe would also buy American goods. Sixteen nations joined.

Two arms, one goal: Truman Doctrine = the words and the will. Marshall Plan = the money. Together they made containment real — and to Stalin they looked like America buying influence right up to the Soviet border.

Stalin saw containment as an attack. To him the Marshall Plan was 'dollar imperialism' — a way to pull Eastern Europe out of the Soviet orbit with cash.

He forbade the countries he controlled from joining, and hit back with two organisations of his own.

The sharpest clash came over Germany. After the war it was split into four zones (US, British, French and Soviet), and its capital Berlin — deep inside the Soviet zone — was itself split four ways.

The West and the Soviets could not agree on Germany's future, and by 1948 they stopped trying.

What set off the crisis: The Western powers merged their zones economically into Bizonia and, in June 1948, launched a new strong currency, the Deutschmark.

Stalin saw a rebuilt, capitalist West Germany forming on his doorstep — and West Berlin as a Western island he could squeeze.

The Berlin Blockade (Jun 1948 – May 1949): Stalin cut off all road, rail and canal routes into West Berlin, hoping to starve the Western powers out and force them to abandon the city — or give up their currency reform.

Over two million West Berliners were suddenly cut off from food and coal.

The Berlin Airlift: Instead of retreating or fighting their way in, the Western powers supplied West Berlin entirely by air. For nearly a year, planes landed roughly every few minutes, flying in food, fuel and medicine.

Stalin faced a choice: shoot down aircraft and risk war, or back down. In May 1949 he lifted the blockade. The West had won a huge propaganda victory.

The Berlin crisis convinced the West it needed a permanent military shield, not just economic aid. Poverty could be fixed with dollars, but tanks needed an army.

So in April 1949 — even before the blockade ended — twelve Western nations signed a defensive alliance.

NATO (1949): The North Atlantic Treaty Organization bound the USA, Canada and Western European states together in a promise: an attack on one is an attack on all.

For the first time in peacetime, the United States was formally committed to defending Europe. Containment now had military muscle.

Two German states (1949): Germany's division became official. In 1949 the Western zones became the Federal Republic of Germany (FRG / West Germany), and the Soviet zone became the German Democratic Republic (GDR / East Germany).

One country was now two, each tied to a rival superpower — the clearest symbol of a divided Europe.

The Soviet military reply came later. For a while Stalin had no matching alliance, but a key change forced his hand: in 1955 West Germany was allowed to rearm and join NATO.

An armed West Germany inside a hostile alliance was Moscow's nightmare, so the Soviets built a bloc of their own.

The Warsaw Pact (1955): The Warsaw Pact was a military alliance of the Soviet Union and its Eastern European satellite states, created directly in response to West Germany joining NATO.

Europe was now locked into two armed camps, facing each other across a divided Germany — the shape it would keep for forty years.

The pattern examiners want you to see: Every Western move produced a Soviet counter-move: Marshall Plan → Comecon, NATO → Warsaw Pact.

Use this action–reaction pattern to argue about who was responsible for dividing Europe — the heart of most Paper 2 questions on this topic.

China enters the picture: a third pole in the Cold War

The neat two-bloc picture — USA vs USSR — was already cracking by the late 1950s.

China, the world's most populous country, had become a communist state in 1949 when Mao Zedong and the Chinese Communist Party (CCP) took power. At first Moscow and Beijing looked like natural allies. But the friendship was shakier than it appeared — and it shattered within a decade.

Why the split matters for IB History: The syllabus specifically names 'Sino-Soviet and Sino-US relations' as content you must know.

The split is important for two reasons: 1. It proved communism was not a single monolithic bloc — communist states could become rivals. 2. It created the strategic opportunity that Nixon exploited in 1972: if Moscow and Beijing distrusted each other, Washington could play them off against each other.

Nixon's visit to China, February 1972: For more than two decades the United States had refused to recognise the People's Republic of China, instead treating the Nationalist government in Taiwan as the legitimate Chinese government.

In February 1972, President Richard Nixon — a lifelong anti-communist — flew to Beijing and met Mao Zedong. The handshake stunned the world.

Nixon's national security adviser Henry Kissinger had prepared the ground through secret diplomacy. The logic was cold and strategic: a US–China opening would alarm Moscow and push the Soviets to negotiate with Washington too — the policy of playing rivals against each other that Kissinger called 'triangular diplomacy'.

How the examiners test this (Paper 2): Questions may ask about 'superpower relations 1947–1979' or 'the role of China in the Cold War'.

Key argument to make: the Cold War was never simply a two-power contest. The Sino-Soviet split and Nixon's opening show that ideology did not guarantee alliance and that Cold War alignments were strategic, not fixed.

If asked about détente, link Nixon–Mao directly to Nixon–Brezhnev: the China opening put pressure on the USSR to negotiate SALT I (1972) in the same year.