Five of the branches, the United States Army, United States Marine Corps, United States Navy, United States Air Force, and United States Space Force, are part of the Department of Defense.

Aug 27, 2025 · Learn about the missions and history of the six branches of the U.S. armed forces: Air Force, Army, Coast Guard, Marine Corps, Navy, and Space Force.

The latest news, images, videos, career information, and links from the U.S. Army

The Department of War provides the military forces needed to deter war and ensure our nation's security.

Apr 2, 2024 · In simple terms, the U.S. Armed Forces are made up of the six military branches: Air Force, Army, Coast Guard, Marine Corps, Navy and Space Force.

Jan 19, 2026 · Detailing the current military strength of United States including air force, army, navy, financials and manpower.

Each branch has a distinct mission and operates across different domains—land, sea, air, space, and coastal waters. Together, they employ over 1.3 million active-duty personnel and 799,500 reserve …