What Are the Main Responsibilities of the U.S. Marine Corps?


Quick Answer

The main responsibilities of the U.S. Marine Corps is to protect naval bases, guard United States embassies and serve as a quick strike force to protect U.S. interests. Many Marines serve as infantrymen, but many also serve as pilots, radar equipment operators, intelligence gatherers and drivers of various ground vehicles.

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Full Answer

The Marine Corps's main national security function is as an amphibious, expeditionary and air-ground combined arms task force that is capable of forcible entry from the air, land and sea. Historically, the Marines have been used in the seizure or defense of naval bases and other land operations that support naval campaigns; in the development of tactics, technique and equipment used by amphibious landing forces and any other duties as directed by the President.

The Marine Corps also conducts "Visit, board, search and seizure" operations, as well as missions in direct support of the White House and the State Department. Marines from Ceremonial Companies A & B are required to guard presidential retreats and the Marines from the Executive Flight Detachment of HMX-1 provide helicopter transport to the president and vice president. The Marine Security Guards of the Marine Embassy Security Command provide security for American embassies, legations and consulates.

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