Two AH-1Z Viper pilots with Marine Light Attack Helicopter Squadron (HMLA) 169 participate in a simulation of exercise Sea Horse Wind aboard Marine Corps Air Station Camp Pendleton, Calif., Dec. 1. Exercise Sea Horse Wind was a long-range raid conducted by more than 600 Marines with 1st Marine Division and 29 aircraft with 3rd Marine Aircraft Wing. (U.S. Marine Corps photo by Lance Cpl. Jake M.T. McClung/Released) - Two AH-1Z Viper pilots with Marine Light Attack Helicopter Squadron (HMLA) 169 participate in a simulation of exercise Sea Horse Wind aboard Marine Corps Air Station Camp Pendleton, Calif., Dec. 1. Exercise Sea Horse Wind was a long-range raid conducted by more than 600 Marines with 1st Marine Division and 29 aircraft with 3rd Marine Aircraft Wing. (U.S. Marine Corps photo by Lance Cpl. Jake M.T. McClung/Released)

A crew chief with Marine Medium Tiltrotor Squadron (VMM) 165 looks outside an MV-22B Osprey during a training flight from Marine Corps Air Station Miramar to Marine Corps Base Camp Pendleton, Calif., June 8. Crew chiefs aboard the Osprey assisted with maintaining visuals during the flight for the pilots. (U.S. Marine Corps photo by Sgt. Michael Thorn/Released) - A crew chief with Marine Medium Tiltrotor Squadron (VMM) 165 looks outside an MV-22B Osprey during a training flight from Marine Corps Air Station Miramar to Marine Corps Base Camp Pendleton, Calif., June 8. Crew chiefs aboard the Osprey assisted with maintaining visuals during the flight for the pilots. (U.S. Marine Corps photo by Sgt. Michael Thorn/Released)

Marines with 2nd Battalion, 1st Marine Regiment, put their thumbs up after securing themselves into an MV-22B Osprey during egress training aboard Marine Corps Base Camp Pendleton, California, Aug. 18. Marines conducted the training drills as part of predeployment training for the 13th Marine Expeditionary Unit. (U.S. Marine Corps photo by Sgt. Lillian Stephens/Released) - Marines with 2nd Battalion, 1st Marine Regiment, put their thumbs up after securing themselves into an MV-22B Osprey during egress training aboard Marine Corps Base Camp Pendleton, California, Aug. 18. Marines conducted the training drills as part of predeployment training for the 13th Marine Expeditionary Unit. (U.S. Marine Corps photo by Sgt. Lillian Stephens/Released)

Maj. Gen. Michael Rocco, commanding general of 3rd Marine Aircraft Wing, speaks to Marines after an award ceremony inside Hangar 6 aboard Marine Corps Air Station Miramar, California, June 25, 2015. A team of twenty-four Marines from Marine Medium Tiltrotor Squadron 166, VMM-268 and VMM-364 recieved awards for playing a role in returning a grounded MV-22 Osprey to operational flight status. - Maj. Gen. Michael Rocco, commanding general of 3rd Marine Aircraft Wing, speaks to Marines after an award ceremony inside Hangar 6 aboard Marine Corps Air Station Miramar, California, June 25, 2015. A team of twenty-four Marines from Marine Medium Tiltrotor Squadron 166, VMM-268 and VMM-364 recieved awards for playing a role in returning a grounded MV-22 Osprey to operational flight status.

Marines with Marine Medium Tiltrotor Squadron 163 perform pre-flight checks on MV-22B Ospreys prior to a large-scale training flight aboard Marine Corps Air Station Miramar, California, April 10. This training operation marks the last time the commanding officer of VMM-163 will participate in a squadron-sized event before relinquishing command. - Marines with Marine Medium Tiltrotor Squadron 163 perform pre-flight checks on MV-22B Ospreys prior to a large-scale training flight aboard Marine Corps Air Station Miramar, California, April 10. This training operation marks the last time the commanding officer of VMM-163 will participate in a squadron-sized event before relinquishing command.

A CH-46E Sea Knight sits on the flight line during sunset aboard Moffett Federal Airfield, Calif., Sept. 11. Marines of HMM-268 conducted familiarization navigation flights and night confined area landing flights while in Moffett. - A CH-46E Sea Knight sits on the flight line during sunset aboard Moffett Federal Airfield, Calif., Sept. 11. Marines of HMM-268 conducted familiarization navigation flights and night confined area landing flights while in Moffett.