The ANZUS treaty has reached its 75th anniversary [1], marking seven and a half decades of security cooperation between Australia, New Zealand, and the U.S.
The milestone highlights Australia's continued reliance on foreign military guarantees to maintain national stability. Because Australia possesses limited independent defense capabilities, the alliance serves as the primary deterrent against regional threats.
Greg Sheridan, Foreign Editor of The Australian, said the alliance remains fundamental to the security of the nation. In an interview in Sydney, Sheridan said the partnership is essential due to the current state of domestic military power.
"Given that we have almost no defences of our own, we rely overwhelmingly on American provision of security," Sheridan said [1].
Sheridan said the strategic value of the pact transcends the personalities of individual political leaders. He said that while some Australians may hold negative views of Donald Trump, the structural importance of the U.S. alliance remains unchanged.
"It’s profoundly in Australia’s interests, it’s also in the global interest, and although Australians don’t like Trump, they value the US alliance, and they’re right to do so," Sheridan said [1].
The treaty, signed in 1951, was designed to provide a collective security framework in the Pacific. For 75 years [1], it has evolved from a Cold War deterrent into a multifaceted strategic partnership involving intelligence sharing, and joint military exercises.
Sheridan said the reliance on the U.S. is not merely a preference but a necessity. The lack of a fully autonomous defense infrastructure makes the security guarantees provided by the U.S. the cornerstone of Australia's foreign policy.
“"Given that we have almost no defences of our own, we rely overwhelmingly on American provision of security."”
The 75th anniversary of ANZUS underscores a persistent asymmetry in the security relationship between Australia and the U.S. By acknowledging a lack of independent defense capability, Australian strategic analysts are highlighting that the nation's sovereignty is effectively tethered to U.S. geopolitical will. This dependency makes Australia particularly sensitive to shifts in U.S. domestic politics and changes in American foreign policy priorities in the Indo-Pacific.
