An Overview of Australia’s Defence Policy Australia’s defence policy has evolved through various phases. Largely, Australia’s strategic interests were mostly confined to the geo-strategic area of the Indo-Pacific region; as historically threats to Australia have emerged from Southeast Asia. While over the time, the changes in the balance of power among great powers and Australia’s internal capability to respond to threats led to adoption of different strategies. The Need for ANZUS Treaty Initially its identity of being a former British Colony and World War I, led Australia to tie itself with the collective strategic imperative of the British Empire....