Semper Fidelis
Always Faithful. Always Forward.
The United States Marine Corps — America's expeditionary force in readiness,
trained to respond rapidly to threats across every domain.
America's Stand-In Force
The United States Marine Corps exists to provide the National Command Authority with a responsive, combined-arms force capable of operations across the full spectrum of conflict.
Operating as a Marine Air-Ground Task Force (MAGTF), the Corps deploys rapidly by air, land, and sea — integrating ground combat, aviation, and logistics under a single commander.
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Amphibious Warfare
Seize and defend advanced naval bases and land operations supporting naval campaigns.
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Expeditionary Operations
Rapid global response to crises, humanitarian efforts, and combat operations worldwide.
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Embassy Security
Guard U.S. diplomatic missions and critical installations across the globe, 24/7/365.
250 Years of Faithful Service
Continental Marines
Founded at Tun Tavern, Philadelphia on November 10 — two battalions ordered by the Second Continental Congress to serve with the fleet.
Halls of Montezuma
Marines storm Chapultepec Castle during the Mexican-American War, immortalized in the Marine Hymn.
Belleau Wood
Marines earn the nickname "Devil Dogs" at Belleau Wood — one of the most savage battles of World War I.
Iwo Jima
Five Marines and a Navy corpsman raise the flag atop Mount Suribachi — the most reproduced photograph in history.
Always Ready
172,000+ active Marines deployed across six continents, ready to respond within hours to any crisis.
The Foundation of Every Marine
Honor
Marines hold themselves and each other to the highest standards of conduct — ethical behavior, personal integrity, and accountability in all things.
Courage
The mental, moral, and physical strength ingrained in Marines — the ability to do what is right even in the face of overwhelming adversity.
Commitment
The spirit of determination and dedication found in Marines — the selfless determination to complete the mission and take care of one another.
Semper Fidelis Always Faithful
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