ANZUS Treaty

Year signed1951
TypeAlliance
RegionOceania
PartiesAustralia, New Zealand, United States

About the ANZUS Treaty

Pacific security pact linking the three. New Zealand suspended from the alliance 1986 over its nuclear free policy banning US nuclear ships, the rift lasting until restored partnership 2010s. The treaty binds consultation, invoked by Australia after 9/11, its first ever combat invocation of their defense obligations. ANZUS remains the bedrock of Australian defense planning amid Pacific power shifts.

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