Military service
Join the armed forces, register with Selective Service, and support for service members and families.
11 services
2 sections
24/7
Join the military
8 services
How to join the military
Age, citizenship and education requirements for each branch.
U.S. Army
Careers and enlistment in the Army.
U.S. Navy
Careers in the Navy.
U.S. Air Force
Careers in the Air Force.
U.S. Marine Corps
Become a Marine.
U.S. Coast Guard
Careers in the Coast Guard.
U.S. Space Force
Careers in the Space Force.
Selective Service registration
Required for most men aged 18–25 living in the U.S.