 | This article includes a list of general references, but it lacks sufficient corresponding inline citations. (January 2024) |
| Marine Fighter Attack Squadron 121 | |
|---|---|
 VMFA-121 insignia | |
| Active | 24 June 1941 - present |
| Country |  United States of America |
| Branch |  United States Marine Corps |
| Type | Fighter/Attack |
| Role | Close air support Air interdiction Aerial reconnaissance |
| Part of | Marine Aircraft Group 12 1st Marine Aircraft Wing III Marine Expeditionary Force |
| Garrison/HQ | Marine Corps Air Station Iwakuni, Japan |
| Nickname(s) | Green Knights Combat (Call Sign) |
| Motto(s) | "Have Gun Will Travel" |
| Tail Code | VK |
| Engagements | |
| Commanders | |
| Commanding Officer | LtCol. Adam F. Perlin |
| Executive Officer | Maj. Thomas Whitesel |
| Sergeant Major | SgtMaj Victor M. Martinez |
| Aircraft flown | |
| Attack | AD-2 Skyraider A-4 Skyhawk A-6 Intruder |
| Fighter | F4F Wildcat F4U Corsair F8F Bearcat F9F-8B Cougar F/A-18D Hornet F-35B Lightning II |
Marine Fighter Attack Squadron 121 (VMFA-121), also known as the "Green Knights", is a United States Marine Corps aircraft squadron operating the F-35B Lightning II. The squadron is based at Marine Corps Air Station Iwakuni, Japan and falls under the command of Marine Aircraft Group 12 (MAG-12) and the 1st Marine Aircraft Wing (1st MAW). Their tail code is VK and their radio call sign is "Combat".