The third most populous country in the world

The United States has a population of 320 million, ranking third in the world.

The United States of America, referred to as the United States, is a federal government and constitutional country consisting of Washington, DC, 50 states, Guam and many other overseas territories. The main part of the United States is located in the center of North America, with a total land area of ??9.63 million square kilometers and a population of 320 million. English is commonly spoken. The United States is a country of immigrants. It was originally a settlement of Indians. At the end of the 15th century, Spain, the Netherlands, the United Kingdom and other countries began to migrate to North America. migrant. In 1773, Britain established 13 colonies; in 1775, the North American people's war of independence broke out against the British colonists; on July 4, 1776, the Second Continental Congress was held in Philadelphia, officially announcing the establishment of the United States of America. In 1788, the Revolutionary War ended and George Washington was elected as the first president of the United States. At the beginning of the 19th century, the United States began its external expansion. After World War II, its national power increased significantly and it is the only "hegemonic" superpower in the world today. In February 2016, the Global Military Power Index was released, and the United States, Russia and China ranked among the top three in terms of military power among the world's major powers.