The military is typically divided into five main branches: the Army, Navy, Air Force, Marine Corps, and Coast Guard. Each branch has its own specific roles and responsibilities, focusing on different aspects of national defense. The Army primarily handles land-based operations, while the Navy is responsible for naval warfare and protecting maritime interests. The Air Force focuses on aerial combat and air support. The Marine Corps serves as a rapid-response force, often deployed in crisis situations, and works closely with the Navy. The Coast Guard primarily ensures maritime safety and security, operating under the Department of Homeland Security during peacetime and can be transferred to the Department of Defense during wartime.