Border control refers to the measures and policies that a country implements to regulate the movement of people and goods across its borders. This includes checking passports, visas, and other identification documents to ensure that individuals meet entry requirements. Border control aims to enhance national security, prevent illegal immigration, and manage the flow of trade. In addition to personnel, border control often involves technology such as surveillance cameras and biometric systems. Agencies like the Customs and Border Protection (CBP) in the United States play a crucial role in enforcing these regulations. Effective border control helps maintain safety and order while facilitating legitimate travel and commerce.