United States of America is a country located primarily in North America. It consists of 50 states, a federal district (Washington, D.C., the capital), five major self-governing territories, and various minor outlying islands.

Key facts about the US:

* **Geography:** It is the world’s third-largest country by land area and population. It shares land borders with Canada to the north and Mexico to the south.
* **Government:** It is a federal presidential constitutional republic.
* **Capital:** Washington, D.C.
* **Most Populous City:** New York City.
* **Economy:** The U.S. has a highly developed mixed economy and is a leading global economic, political, and cultural power.
* **History:** The country was founded on July 4, 1776, when the Declaration of Independence was adopted by the thirteen colonies. It fought the American Revolutionary War to gain independence from Great Britain.

The United States plays a major role in international affairs and is a member of numerous global organizations. Its culture, including its music, films, and television, has a significant influence worldwide.