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
Eugenio Pacelli's 1936 visit to the United States Eugenio Pacelli's 1936 visit to the United States Eugenio Pacelli (the future Pope Pius XII) visited the United States for two weeks in October–November 1936 as Cardinal Secretary of State and Camerlengo of the Holy Roman Church. At the time, Pacelli was the highest ranking Catholic official ever to visit the US. Although he did not visit the US as Pope, he was the first Pope who visited the US at any time in his life. Pacelli met with President Franklin D. Roosevelt, investigated Roosevelt's radio critic Rev. Charles Coughlin, and visited New York City, Washington, D.C., Boston, Saint Paul,