United States Marine Corps Special Operations Capable Forces

The United States Marine Corps is assigned by the National Command Authority to be primarily the Department of Defense's expeditionary force-in-readiness, and the Department of the Navy's contingent landing force—amphibious by nature. Before 2006 (i.e., the formation of the Marine Corps Special Operations Command (MARSOC)), the Marine Corps was the only branch of the Armed Forces that did not have any of its special warfare elements participating in the United States Special Operations Command (USSOCOM), due to confining its special operations capabilities only for the purpose to the Fleet Marine Force.

President Ronald Reagan approved the establishment of USSOCOM in April 1987; a month later the other military branches reassigned their own respective special operations forces (SOF) units to the USSOCOM Headquarters in Tampa, Florida at MacDill Air Force Base. However, as the Marine Corps was reluctant to release control of Marine units, its specialized assets assigned to the FMF's Marine Air-Ground Task Forces remained separate and have evolved to fulfill a separate niche of tasks, specific and limited in scope, in direct support of a Marine Expeditionary Units' commander.

This evolution occurred due to the direction of Commandant of the Marine Corps General Alfred M. Gray, who announced on 5 February 1988, that in response to the current and projected realities of the world, they were changing the designations of the Marine Air-Ground Task Forces that constitute its fighting formations. The word "amphibious" was replaced by "expeditionary". The new term signified that the Marine Corps would not be limited to amphibious operations but rather would be capable of a wide spectrum of operations in littoral areas around the world, in conventional and unconventional warfare.

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