The U.S. Customs and Border Protection (CBP) is a government agency created in 2003, falling under the Department of Homeland Security. It is a significant law enforcement agency with the primary role of guarding the nation's borders. The CBP manages the flow of people and goods into and out of the country, ensuring everything is in line with the laws. By doing so, it helps keep the country safe from potential threats and also supports legal trade and travel. The agency combines various resources and works with other international entities to accomplish its mission of maintaining the security and economic prosperity of the United States.