Australia in the Korean War
No. 77 Squadron converted to P-51D Mustang fighters before arriving in Japan in February 1946 to participate in the British Commonwealth Occupation Force. Occupation duties proved uneventful, and No. 77 Squadron was preparing to leave Japan for Australia when the Korean War broke out in June 1950. 77 Sqn was immediately dispatched to Korea, where they became the first UN air unit to enter the war, primarily in ground support, combat air patrol, and escort missions.
Foreign relations of Australia
Australia sent troops to repel communism and assist South Vietnamese and American forces in the Vietnam War, in a move that stirred up antiwar activism at home. It joined coalition forces in the Persian Gulf War in 1991. Australia has been active in the Australia – New Zealand – United Kingdom agreement and the Five Power Defence Arrangement—successive arrangements with Britain and New Zealand to ensure the security of Singapore and Malaysia.