The United States Armed Forces consists of five main branches: the Army, Navy, Air Force, Marine Corps, and Coast Guard. Each branch has its own unique mission and responsibilities, contributing to national defense and security. The Army focuses on land-based military operations, while the Navy operates at sea. The Air Force is responsible for aerial warfare, and the Marine Corps serves as a rapid-response force. The Coast Guard, which can operate under the Department of Homeland Security, primarily focuses on maritime safety and security. In addition to these five branches, there is also the National Guard and the Reserves, which provide additional support and can be activated during emergencies. The National Guard serves both state and federal missions, while the Reserves allow service members to maintain civilian careers while being available for military duty. Together, these branches work to protect the interests and safety of the United States.