Federal Government Agencies/Departments | United States Department of Defense
1400 Defense Pentagon, Washington, DC 20301-1400
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English
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AZ
Description
Maintains military forces to deter war and to protect the security of the country. Website provides information about the Air Force, Army, Marine Corps, Navy, and Space Force. Note that the Coast Guard is part of the Navy during conflicts and part of Homeland Security in times of peace; the National Guard is a state-based reserve force which can be activated for federal missions. Also provides answers to frequently asked questions and links to additional resources.
Last Assured
10/01/2025
What's Here
Providing organization
United States Department of Defense
Maintains military forces to deter war and to protect the security of the country. Website provides information about the Air Force, Army, Marine Corps, Navy, and Space Force. Note that the Coast Guard is part of the Navy during conflicts and part of Homeland Security in times of peace; the National Guard is a state-based reserve force which can be activated for federal missions. Also provides answers to frequently asked questions and links to additional resources.