Nuclear Umbrella - ANZUS

ANZUS

As late as 1970, Australia considered embarking on nuclear weapons development but finally agreed to sign the Nuclear Non-Proliferation Treaty. Since then Australia has been a proponent of nuclear disarmament.

The ANZUS alliance originally included Australia, New Zealand and the U.S., but after New Zealand's nuclear-free zone was proclaimed, the U.S. no longer considered the country to be under its nuclear umbrella.