Origins of the Cold War
Australia's entry into the Cold War came in 1950, when it rushed combat air and sea forces into the Korean War, two days after the Americans did. The Australian Prime Minister received a hero's welcome in Washington. The ANZUS military alliance with New Zealand and the United States was signed in July 1951; it was a plan for consultation and did not involve military planning like NATO. Public opinion in Australia was intensely hostile to Japan after its wartime atrocities, but Japan was now an ally in the Cold War, so Australia's accepted the very generous soft peace treaty with Japan in 1951. Instead of worrying about a resurgent Japan, Australia now worried more about a possible Chinese threat.
Foreign relations of Australia
Australia was one of the founders of both the United Nations and the South Pacific Commission (1947), and in 1950, it proposed the Colombo Plan to assist developing countries in Asia. In addition to contributing to UN forces in the Korean War – it was the first country to announce it would do so after the United States – Australia sent troops to assist in putting down the communist revolt in Malaya in 1948–60 and later to combat the Indonesian-supported invasion of Sarawak in 1963–65.