Australia, officially the Commonwealth of Australia, is a sovereign country comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands. It is the largest country in Oceania and the world's sixth-largest country by total area. The population of 26 million is highly urbanised and heavily concentrated on the eastern seaboard.

British Columbia (BC) is the westernmost province in Canada, between the Pacific Ocean and the Rocky Mountains. With an estimated population of 5.1 million as of 2020, it is Canada's third-most populous province. British Columbia is bordered to the west by the Pacific Ocean and the American state of Alaska, to the north by Yukon and the Northwest Territories, to the east by the province of Alberta, and to the south by the American states of Washington, Idaho, and Montana.