United States military personnel in formation
U.S. Military & Defense

Armed Forces

The United States Armed Forces comprise six military branches under the Department of Defense, protecting the nation and its interests across land, sea, air, space, and cyberspace.

Overview

The World's Most Powerful Military

The United States Armed Forces are the military forces of the United States of America. The President of the United States is the Commander-in-Chief and is advised by the Secretary of Defense and the Joint Chiefs of Staff.

The six branches — Army, Navy, Marine Corps, Air Force, Coast Guard, and Space Force — operate under the Department of Defense (DoD), except the Coast Guard which operates under the Department of Homeland Security in peacetime.

With an annual defense budget exceeding $886 billion, approximately 1.3 million active-duty personnel, and 800+ military installations worldwide, the U.S. military maintains unmatched global reach and power projection capability.

$886B

Annual Defense Budget

FY 2025 appropriation

1.3M

Active-Duty Personnel

Across all six branches

800+

Global Installations

In 70+ countries

6

Military Branches

Army, Navy, USMC, USAF, USCG, USSF

Six Branches

Military Branches

Each branch has a distinct mission, culture, and area of operations — together forming an integrated joint force.

USAEst. 1775

U.S. Army

"This We'll Defend"

The oldest and largest branch, the Army conducts sustained land operations and is the primary ground combat force. It operates across the full spectrum of conflict from peacekeeping to major combat operations.

Key Capabilities

  • Ground combat operations
  • Airborne & air assault
  • Armored warfare
  • Special Forces (Green Berets)
  • Army Aviation

Personnel: 452,000 active

HQ: Pentagon, Arlington, VA

View branch details
USNEst. 1775

U.S. Navy

"Semper Fortis"

The Navy maintains freedom of the seas, projects power from the sea, and provides strategic nuclear deterrence. It operates the world's largest carrier strike group fleet and a global submarine force.

Key Capabilities

  • Carrier strike groups
  • Submarine warfare
  • Naval aviation
  • SEAL special operations
  • Strategic nuclear deterrence

Personnel: 347,000 active

HQ: Pentagon, Arlington, VA

View branch details
USMCEst. 1775

U.S. Marine Corps

"Semper Fidelis"

The Marine Corps is an expeditionary force-in-readiness, specializing in amphibious operations and rapid deployment. Marines serve as the nation's crisis response force and are often first to fight.

Key Capabilities

  • Amphibious assault
  • Expeditionary operations
  • Marine Raiders (MARSOC)
  • Close air support
  • Embassy security

Personnel: 177,000 active

HQ: Pentagon, Arlington, VA

View branch details
USAFEst. 1947

U.S. Air Force

"Aim High... Fly-Fight-Win"

The Air Force defends the nation through control and exploitation of air and space. It operates the world's most advanced tactical and strategic aircraft, including stealth bombers and fifth-generation fighters.

Key Capabilities

  • Air superiority
  • Strategic bombing (B-2, B-21)
  • Airlift & refueling
  • Cyber operations
  • Nuclear triad (ICBMs)

Personnel: 329,000 active

HQ: Pentagon, Arlington, VA

View branch details
USCGEst. 1790

U.S. Coast Guard

"Semper Paratus"

The Coast Guard is a maritime law enforcement, search and rescue, and national defense force. It operates under DHS in peacetime and can be transferred to the Navy in wartime by the President.

Key Capabilities

  • Maritime law enforcement
  • Search & rescue
  • Port security
  • Drug interdiction
  • Arctic operations

Personnel: 41,000 active

HQ: Washington, DC

View branch details
USSFEst. 2019

U.S. Space Force

"Semper Supra"

The newest and smallest branch, the Space Force organizes, trains, and equips space forces to protect U.S. and allied interests in space and to provide space capabilities to the joint force.

Key Capabilities

  • Satellite operations
  • Space domain awareness
  • GPS management
  • Missile warning
  • Space launch operations

Personnel: 9,400 active

HQ: Pentagon, Arlington, VA

View branch details
Unified Commands

Combatant Commands

Ten unified combatant commands provide command and control of U.S. military forces across geographic regions and functional missions.

USNORTHERNCOMGeographic

Northern USA Command

Provides homeland defense and security for the northern United States, including Alaska, the Arctic region, and the northern approaches — defending the continental U.S. from air, land, sea, space, and cyber threats originating from the north.

HQ: Peterson SFB, Colorado Springs, CO

USEUCOMGeographic

European Command

Directs U.S. military operations and theater security cooperation across Europe and parts of the Middle East.

HQ: Stuttgart, Germany

USCENTCOMGeographic

Central Command

Responsible for U.S. military operations in the Middle East, Central Asia, and parts of South Asia.

HQ: Tampa, FL

USSOUTHCOMGeographic

Southern Command

Responsible for U.S. military operations in Central America, South America, and the Caribbean.

HQ: Miami, FL

USAFRICOMGeographic

Africa Command

Responsible for U.S. military operations and theater security cooperation across the African continent.

HQ: Stuttgart, Germany

USSOCOMFunctional

Special Operations Command

Provides fully capable special operations forces to defend the U.S. and its interests globally.

HQ: Tampa, FL

USSTRATCOMFunctional

Strategic Command

Responsible for strategic deterrence, nuclear operations, space, cyberspace, and global strike.

HQ: Offutt AFB, NE

USTRANSCOMFunctional

Transportation Command

Provides air, land, and sea transportation for the DoD across the globe.

HQ: Scott AFB, IL

USCYBERCOMFunctional

Cyber Command

Directs, synchronizes, and coordinates cyberspace operations to defend DoD networks and conduct offensive cyber operations.

HQ: Fort Meade, MD

USSPACECOMFunctional

Space Command

Conducts space operations to deter conflict, and if necessary, defeat aggression while protecting U.S. interests in space.

HQ: Peterson SFB, CO

Veterans Services

Department of Veterans Affairs

The VA provides benefits, healthcare, and memorial services to the nation's 18 million veterans and their families.

18M+

Veterans Served

1,300+

VA Facilities

$300B

Annual VA Budget

400K+

VA Employees

Healthcare

VA operates the nation's largest integrated healthcare system with 170 medical centers and 1,100+ outpatient sites.

Disability Benefits

Compensation for veterans with service-connected disabilities, ranging from 0% to 100% disability ratings.

Education (GI Bill)

The Post-9/11 GI Bill provides up to 36 months of education benefits for tuition, housing, and books.

Home Loans

VA-guaranteed home loans with no down payment requirement for eligible veterans and service members.

Life Insurance

Servicemembers' Group Life Insurance (SGLI) and Veterans' Group Life Insurance (VGLI) programs.

Memorial Affairs

National Cemetery Administration maintains 155 national cemeteries and provides burial benefits for veterans.

Serve. Honor. Protect.

Learn more about military service, veterans benefits, and the Department of Defense at official U.S. government resources.