Military Branches

Official websites for all branches of the United States Armed Forces

United States Army

The Army is the oldest and largest branch, responsible for land-based military operations.

The Navy maintains maritime security and projects power across the world's oceans.

The Air Force provides air and space superiority, global strike, and rapid mobility.

The Marines are an expeditionary force capable of rapid deployment and amphibious operations.

The Coast Guard protects maritime interests, enforces laws, and conducts search and rescue.

The Space Force organizes, trains, and equips space forces to protect U.S. interests in space.

Links open in a new tab • Official U.S. Department of Defense websites