What does U.S. Marine Corps do?

The United States Marine Corps (USMC) is a vital military service within the U.S. Department of the Navy, established on November 10, 1775. Originally formed for naval infantry roles, it has evolved into a global expeditionary force known for rapid response and power projection. The USMC has a rich history, participating in every major U.S. war and over 300 foreign landings, with a current strength of approximately 169,000 active-duty members and 33,000 reserves. The core mission of the USMC includes seizing and defending naval bases, conducting amphibious operations, and providing security for naval vessels. It operates through the Fleet Marine Force Pacific and Atlantic, focusing on training and logistics. The Corps is recognized for its integrated capabilities in infantry, aviation, artillery, and logistics, excelling in various operations, including crisis response and expeditionary warfare. The motto "Semper Fidelis" embodies its commitment to versatility and readiness across all domains.