Australia

Australia, officially known as the Commonwealth of Australia, was the largest country in Oceania before the Great War.

Background
Skeletons of horned kangaroos, mutated creatures native to Australia, can be found in Fallout and Fallout 2.

Ymir is of Australian descent.

The Australian termite beetle is mentioned in the Pioneer Scout entomology exam. The Australian continent is mentioned in the Pioneer Scout mammologist exam.

The dog breed Australian Shepard is available as a pet in Fallout Shelter.

Appearances
Australia is mentioned in Fallout, Fallout 2, the Fallout 76 update Wild Appalachia, and Fallout Shelter.