Australia–United States relations Minister for Defence, US Secretary of Defense and US Secretary of State. The first Australian visit by a serving United States President was that of Lyndon B. Johnson in 1966 to seek support for Australia's ongoing involvement in the Vietnam War. Australia had previously sent advisers and combat troops to Vietnam. In 1992, George H. W. Bush was the first of four US presidents to address a joint meeting of the Australian Parliament. Australia's Prime Minister, Kevin Rudd, ratified the Kyoto Protocol on 3 December 2007, leaving the United States and Canada as the last major industrial nations not to
Ngo Dinh Diem presidential visit to Australia had little support. Australia later sent troops to support South Vietnam in the anti-communist fight, but the bipartisanship evaporated during the mid-1960s as the ALP began to sympathise with North Vietnam and opposition to the Vietnam War grew. The ALP later withdrew support for and refused to accept refugees from South Vietnam after winning office, but on the return of the centre right Liberal-National coalition to power in 1975, Vietnamese refugees were allowed to resettle in Australia in large numbers. In 1933, the devoutly Catholic Diệm was appointed Interior Minister of Vietnam, serving under Emperor Bảo Đại. However, a few