United States Department of Defense | United States Department of Defense
Resource Name:United States Department of Defense | United States Department of Defense
address
1400 Defense Pentagon, Washington, DC 20301-1400
Eligibility
Varies by program
Hours
Mon-Fri 8am-5pm Eastern Time administration
703-571-3343
Voice
·Main
Website
https://www.defense.govApplication process
Visit website
Fees
None
Service area
All ZIP Codes, AZ
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
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.