[1] The group was deactivated following the end of the war and was not reactivated until 2000 when the Marine Aviation Detachment at Naval Air Station Pensacola, Florida was renamed MATSG-21.

They also provide ceremonial support for base and local events in the form of color guards and special detail advisors.

By June 1943, MAG-21's squadrons were fighting large scale operations against Japanese installations in the northern Solomon Islands.

[citation needed] Hurricanes Ivan and Dennis nearly destroyed the historic [NAS Pensacola] including the buildings used to house MATSG-21.

[citation needed] The command currently oversees training along the Gulf Coast to include Recon and Reserve activities.