England is the largest, and most populous country of the United Kingdom of Great Britain and Northern Ireland. Its inhabitants account for more than 83% of the total population of the United Kingdom.

The United States of America is a constitutional federal republic comprising fifty states and a federal district. The country is situated mostly in central North America, where its forty-eight contiguous states and Washington, D.C., the capital district, lie between the Pacific and Atlantic Oceans, bordered by Canada to the north and Mexico to the south.

Canada is a country occupying most of northern North America, extending from the Atlantic Ocean in the east to the Pacific Ocean in the west and northward into the Arctic Ocean. It is the world's second largest country by total area, and shares land borders with the United States to the south and northwest.

The Commonwealth of Australia is a country in the southern hemisphere comprising the mainland of the world's smallest continent, the major island of Tasmania, and a number of other islands in the Indian and Pacific Oceans.

Malta, officially the Republic of Malta (Maltese: Repubblika ta' Malta), is a small and densely-populated island nation comprising an archipelago of seven islands, three of which are inhabited. It is located in the Mediterranean Sea within Southern Europe just 93 km (58 miles) south of Sicily; 288 km (179 miles) to its south is North Africa, giving the country a warm climate.

New Zealand is a country in the south-western Pacific Ocean comprising two large islands (the North Island and the South Island) and numerous smaller islands, most notably Stewart Island/Rakiura and the Chatham Islands.