Customs and Border Protection (CBP) is a vital agency of the United States Department of Homeland Security. Its primary mission is to safeguard the nation's borders while facilitating lawful international trade and travel. CBP officers work at ports of entry, ensuring that goods and people entering the U.S. comply with all laws and regulations. In addition to enforcing customs laws, CBP plays a crucial role in preventing illegal immigration and trafficking. The agency employs various strategies, including surveillance and inspections, to protect the country from potential threats while promoting legitimate commerce and tourism.