Asia is Earth's largest and most populous continent, located primarily in the Eastern and Northern Hemispheres. It shares the continental landmass of Eurasia with the continent of Europe and the continental landmass of Afro-Eurasia with both Europe and Africa.
Canada–United States relations refers to the bilateral relations between Canada and the United States of America. ... Starting with the American Revolution, when anti-American Loyalists fled to Canada, a vocal element in Canada has warned against US dominance or annexation. The War of 1812 saw invasions across the border.
Australia–New Zealand relations, also referred to as Trans-Tasman relations, are extremely close. Both countries share a British colonial heritage as Antipodean Dominions and settler colonies, and both are part of the wider Anglosphere.
Africa is the world's second largest and second most-populous continent. At about 30.3 million km˛ including adjacent islands, it covers 6% of Earth's total surface area and 20% of its land area. With 1.2 billion people as of 2016, it accounts for about 16% of the world's human population.
Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west and the Mediterranean Sea to the south. It comprises the westernmost part of Eurasia.