<P> By 1947, US president Harry S. Truman was outraged by the Soviet Union's perceived resistance to American demands in Iran, Turkey and Greece, as well as their rejection of the Baruch Plan on nuclear weapons . In February 1947, the British government announced that it could no longer afford to finance the Kingdom of Greece in its civil war against Communist - led insurgents . </P> <P> The US government's response to this announcement was the adoption of containment, the goal of which was to stop the spread of Communism . Truman delivered a speech that called for the allocation of $400 million to intervene in the war and unveiled the Truman Doctrine, which framed the conflict as a contest between free peoples and totalitarian regimes . American policymakers accused the Soviet Union of conspiring against the Greek royalists in an effort to expand Soviet influence even though Stalin had told the Communist Party to cooperate with the British - backed government . (The insurgents were helped by Josip Broz Tito's Socialist Federal Republic of Yugoslavia against Stalin's wishes .) </P> <P> Enunciation of the Truman Doctrine marked the beginning of a US bipartisan defense and foreign policy consensus between Republicans and Democrats focused on containment and deterrence that weakened during and after the Vietnam War, but ultimately persisted thereafter . Moderate and conservative parties in Europe, as well as social democrats, gave virtually unconditional support to the Western alliance, while European and American Communists, financed by the KGB and involved in its intelligence operations, adhered to Moscow's line, although dissent began to appear after 1956 . Other critiques of the consensus policy came from anti-Vietnam War activists, the Campaign for Nuclear Disarmament and the anti-nuclear movement . </P> <P> In early 1947, France, Britain and the United States unsuccessfully attempted to reach an agreement with the Soviet Union for a plan envisioning an economically self - sufficient Germany, including a detailed accounting of the industrial plants, goods and infrastructure already removed by the Soviets . In June 1947, in accordance with the Truman Doctrine, the United States enacted the Marshall Plan, a pledge of economic assistance for all European countries willing to participate, including the Soviet Union . Under the plan, which President Harry S. Truman signed on 3 April 1948, the US government gave to Western European countries over $13 billion (equivalent to $189.39 billion in 2016) to rebuild the economy of Europe . Later, the program led to the creation of the Organisation for European Economic Co-operation . </P>

Who supported the us in the cold war