Military alliances involving Australia

grouping of the victorious countries of World War II

opposing side to the Central Powers in World War I

former international organization for collective defense in Southeast Asia

The Australia, New Zealand, United States Security Treaty (ANZUS or ANZUS Treaty) is a collective security agreement between Australia, New Zealand, and the United States that was signed in 1951, and from which New Zealand has been partially suspended since 1986. It firstly recommits the parties to the purposes of the United Nations, prohibiting the use of force or threats except in self-defence. The following provisions require the parties to maintain their "capacity to resist armed attack", consult with each other on security matters in the Pacific and declare that an armed attack on any of

series of defence relationships established by a series of multi-lateral agreements between the United Kingdom, Australia, New Zealand, Malaysia and Singapore

ANZUK was a tripartite force formed by Australia, New Zealand, and the United Kingdom to defend the Asian Pacific region after the United Kingdom withdrew forces from the east of Suez in the early 1970s. The ANZUK force was formed in Singapore on 1 November 1971 under Rear Admiral David Wells and disbanded on 31 January 1974.