Marine Aircraft Group 12
Marine Aircraft Group 12 is an active United States Marine Corps aviation group based at Marine Corps Air Station Iwakuni in Japan.
Last updated August 31, 2026
AI crawler reads
No AI crawler has read this profile since Oct 28, 2026.
Overview
Marine Aircraft Group 12, commonly abbreviated MAG-12, is an operational aviation group of the United States Marine Corps. It forms part of the 1st Marine Aircraft Wing, which is assigned to III Marine Expeditionary Force and supports United States military activities in the Indo-Pacific. Based at Marine Corps Air Station Iwakuni, Japan, the group provides the organizational framework for fighter, assault-support, aviation logistics, and aviation ground-support units. MAG-12's mission is broader than the operation of a single aircraft type. It is responsible for coordinating tactical aviation capabilities including air reconnaissance, electronic warfare, antiair warfare, offensive air support, aircraft and missile control, and assault support. These functions may be conducted from established air stations, expeditionary bases, advanced positions, or sea-based locations. The group also provides aviation logistics and ground-support capabilities needed to sustain operations in areas where infrastructure may be limited. The group was activated at Camp Kearny in San Diego, California, on 1 March 1942. It soon deployed to the Pacific during the Second World War, where its units supported operations in the Solomon Islands and the Philippines. Its wartime duties included combat against Japanese forces and support for United States Army, Navy, and Marine Corps formations, as well as Philippine guerrilla forces. The group received an Army Distinguished Unit Award and a Navy Unit Citation for its Second World War service. During the Korean War, MAG-12 operated from K-6 Air Base near Pyongtaek beginning in April 1952. Its squadrons conducted extensive combat operations under the operational control of the United States Fifth Air Force, while one unit operated from the aircraft carrier USS Bataan. By the end of the conflict, units associated with the group had flown more than 80,000 effective combat sorties, and MAG-12 received a second Navy Unit Citation. After relocating to Marine Corps Air Station Iwakuni in 1956, MAG-12 supported Fleet Marine Forces in the Western Pacific. It deployed to Chu Lai, South Vietnam, in May 1965, participating in combat operations including the relief of forces at Khe Sanh and operations connected with the recapture of Hue. The group received two additional Navy Unit Citations for its Vietnam War service. It returned to Iwakuni in February 1970, but deployed again to Vietnam in May 1972, operating from Bien Hoa Air Base until the final withdrawal of United States combat aviation personnel on 29 January 1973. Since returning to Iwakuni, MAG-12 has supported regional operations, joint-service training, and exercises across the Western Pacific. Its present subordinate structure includes F-35B Lightning II fighter-attack squadrons, a rotational F/A-18 Hornet squadron, KC-130J aerial-refueling and transport capability, aviation logistics, and marine wing support elements. As an active Marine aviation headquarters, MAG-12 is a military organization rather than a commercial consumer brand.
History
Marine Aircraft Group 12 was activated at Camp Kearny, San Diego, on 1 March 1942, during the rapid expansion of United States Marine Corps aviation in the Second World War. The group deployed to the Pacific and operated in the Solomon Islands and the Philippines. From December 1942 through the end of hostilities in 1945, its constituent units supported Marine, Navy, and Army formations and Philippine guerrilla forces. The group gained a reputation for performing multiple aviation roles, including attacks on enemy ground positions and vessels. Its Second World War service resulted in an Army Distinguished Unit Award and a Navy Unit Citation. On 20 April 1952, during the Korean War, MAG-12 established itself at K-6 Air Base near Pyongtaek. Most of its units operated under the control of the United States Fifth Air Force, while VMA-312 served aboard USS Bataan. MAG-12 units conducted sustained close-air-support and strike operations through the remainder of the war. The group accumulated more than 80,000 effective combat sorties against troops, installations, vehicles, and other targets. It received a second Navy Unit Citation for this period. In 1956, after almost six years in Korea, the group moved to Marine Corps Air Station Iwakuni, Japan. It continued to provide close air support for Fleet Marine Forces in the Western Pacific and participated in regional exercises. In May 1965, MAG-12 deployed to Chu Lai, South Vietnam, where it supported United States Marines and other allied forces fighting Viet Cong and North Vietnamese Army units. Its combat history included participation in major operations involving Hue and the relief of the besieged forces at Khe Sanh. The group received two further Navy Unit Citations for its Vietnam service and returned to Iwakuni in February 1970. The group deployed once more to Vietnam in May 1972, operating from Bien Hoa Air Base. It continued combat operations until the United States withdrawal from the conflict; MAG-12 departed on 29 January 1973 and returned to Iwakuni. In the decades following the Vietnam War, the group maintained its Western Pacific base and participated in joint-service exercises and other regional operations. In its current structure, MAG-12 is part of the 1st Marine Aircraft Wing and III Marine Expeditionary Force. Its subordinate elements include VMFA-121 and VMFA-242, which operate the F-35B Lightning II; a stateside-based VMFA squadron assigned on a six-month Unit Deployment Program rotation and operating the F/A-18 Hornet; VMGR-152, which provides KC-130J aerial-refueling and transport capability; Marine Aviation Logistics Squadron 12; and Marine Wing Support Squadron 171. The group is designed to generate and sustain expeditionary aviation from fixed, advanced, or sea-based locations.
- 1973
Final withdrawal from Vietnam
[1]The group withdrew from Vietnam on 29 January 1973 and returned to Iwakuni.
- 1972
Second Vietnam deployment
[1]MAG-12 returned to Vietnam in May 1972 and conducted combat operations from Bien Hoa Air Base.
- 1970
Return to Iwakuni
[1]The group withdrew from Vietnam in February 1970 and reestablished itself at Marine Corps Air Station Iwakuni.
- 1965
Vietnam deployment to Chu Lai
[1]MAG-12 deployed to Chu Lai in May 1965 to support Marine and allied ground operations in Vietnam.
- 1956
Relocation to Iwakuni
[1]After nearly six years in Korea, the group relocated to Marine Corps Air Station Iwakuni, Japan.
- 1952
Korean War operations from K-6
[1]MAG-12 established its Korean War base at K-6 Air Base on 20 April 1952 and conducted extensive combat sorties through the end of the conflict.
- 1945
Second World War decorations
[1]For its wartime operations, MAG-12 received an Army Distinguished Unit Award and a Navy Unit Citation.
- 1942
Activation at Camp Kearny
[1]Marine Aircraft Group 12 was activated at Camp Kearny in San Diego, California, on 1 March 1942.
- 1942
Deployment to the Pacific
[1]The group deployed to the Pacific and began operations in the Solomon Islands and the Philippines during the Second World War.
Products and positioning
An expeditionary United States Marine Corps aviation group providing integrated tactical aviation, logistics, and ground-support capabilities for III Marine Expeditionary Force and Indo-Pacific operations.
fighter-attack aircraft
F-35B Lightning II
The F-35B is the short-takeoff-and-vertical-landing variant of the Joint Strike Fighter. Within MAG-12, VMFA-121 and VMFA-242 provide modern fighter-attack capability suitable for expeditionary Marine aviation operations.
fighter-attack aircraft
F/A-18 Hornet
MAG-12 includes one F/A-18 Hornet squadron assigned through a six-month Unit Deployment Program rotation from the United States. The squadron supplies conventional fighter-attack and tactical aviation capability during its deployment.
aerial refueling and transport aircraft
KC-130J Super Hercules
VMGR-152 provides KC-130J aerial-refueling and transport support within the group. This capability helps extend the range and endurance of Marine aviation forces while also supporting movement of personnel, equipment, and supplies.
aviation support
Marine aviation logistics
Marine Aviation Logistics Squadron 12 supplies maintenance, repair, supply, and other aviation-logistics functions needed to keep MAG-12 aircraft and subordinate squadrons operational in both established and expeditionary settings.
aviation ground support
Marine wing support
Marine Wing Support Squadron 171 provides aviation ground-support functions that enable the group to operate from airfields and expeditionary locations, including infrastructure and operational support for Marine aviation missions.
Marketing campaigns
- 1972Vietnam War, final deployment
South Vietnam
MAG-12 operated from Bien Hoa Air Base during its final Vietnam deployment and continued combat operations until the United States withdrawal.
Outcome. The group withdrew on 29 January 1973 and returned to Marine Corps Air Station Iwakuni.
- 1965Vietnam War, first deployment
South Vietnam
From Chu Lai, MAG-12 supported Marine and allied ground forces in operations against Viet Cong and North Vietnamese Army units, including operations associated with Hue and Khe Sanh.
Outcome. The group received two Navy Unit Citations for its Vietnam War service and withdrew to Iwakuni in February 1970.
- 1952Korean War
Korean Peninsula
MAG-12 conducted extensive close-air-support and strike operations from K-6 Air Base and through units operating under Fifth Air Force control.
Outcome. The group accumulated more than 80,000 effective combat sorties and received a second Navy Unit Citation.
- 1942Pacific campaign
Solomon Islands · Philippines
From December 1942 through the end of the Second World War, MAG-12 supported United States and Philippine forces in operations across the Solomon Islands and the Philippines.
Outcome. The group received an Army Distinguished Unit Award and a Navy Unit Citation.
Sources1 sources
Cite this profile: Cite the canonical profile. /brand-wiki/marine-aircraft-group-12 · Editorial policy · How profiles are compiled