The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK or U.K.) or Britain, is a sovereign country located off the north­western coast of the European mainland. The United Kingdom includes the island of Great Britain, the north­eastern part of the island of Ireland, and many smaller islands. Northern Ireland shares a land border with the Republic of Ireland. The total area of the United Kingdom is 94,000 square miles (240,000 km2).

Tasmania (nicknamed Tassie) is an island state of Australia. It is located 240 km (150 mi) to the south of the Australian mainland, separated by Bass Strait. The state encompasses the main island of Tasmania, the 26th-largest island in the world, and the surrounding 334 islands. Tasmania's area is 68,401 sq km (26,410 sq mi), of which the main island covers 64,519 sq km (24,911 sq mi).