North America

North America is a continent in the Earth's northern hemisphere and (chiefly) western hemisphere. It is bordered on the north by the Arctic Ocean, on the east by the North Atlantic Ocean, on the southeast by the Caribbean Sea, and on the south and west by the North Pacific Ocean; South America lies to the southeast. It covers an area of about 24,709,000 square kilometers (9,540,000 sq mi), about 4.8% of the planet's surface or about 16.5% of its land area. It is the third-largest continent in the area, following Asia and Africa, and is fourth in population after Asia, Africa, and Europe. North America and South America are collectively known as the Americas.

Countries
The continents former nations reformed at some point in the UNSC's history as the United Republic of North America
 * United Republic of North America
 * United States of America
 * Canada
 * Mexico(?)

Trivia
Avery J. Johnson is from North America.