U.S. Senator Martha McSally visits Marine Corps Air Station (MCAS) Yuma to speak with commanders and Marines at MCAS Yuma, Ariz., April 17, 2019. - U.S. Senator Martha McSally visits Marine Corps Air Station (MCAS) Yuma to speak with commanders and Marines at MCAS Yuma, Ariz., April 17, 2019.

U.S. Marines with Headquarters and Headquarters Squadron practice Marine Corps Martial Arts Program techniques at Marine Corps Air Station Yuma Ariz., April 16, 2019. MCMAP is a combat system developed by the United States Marine Corps to combine techniques with morale and team-building functions and instruction in the warrior ethos. (U.S. Marine Corps photo by Lance Cpl. Joel Soriano) - U.S. Marines with Headquarters and Headquarters Squadron practice Marine Corps Martial Arts Program techniques at Marine Corps Air Station Yuma Ariz., April 16, 2019. MCMAP is a combat system developed by the United States Marine Corps to combine techniques with morale and team-building functions and instruction in the warrior ethos. (U.S. Marine Corps photo by Lance Cpl. Joel Soriano)

U.S. Marines, Sailors, and civilians participate in the 6th annual Sexual Assualt Prevention and Response (SAPR) motorcycle ride on Marine Corps Air Station (MCAS) Yuma, April 12, 2019. The SAPR motorcycle ride is held annually through the Marine Corps Community Service (MCCS) program in efforts to raise awareness. (U.S. Marine Corps photo by Sgt. Allison Lotz) - U.S. Marines, Sailors, and civilians participate in the 6th annual Sexual Assualt Prevention and Response (SAPR) motorcycle ride on Marine Corps Air Station (MCAS) Yuma, April 12, 2019. The SAPR motorcycle ride is held annually through the Marine Corps Community Service (MCCS) program in efforts to raise awareness. (U.S. Marine Corps photo by Sgt. Allison Lotz)

U.S. Marine Corps Lt. Col. Chad Fitzgerald, a pilot assigned to Marine Fighter Training Squadron (VMFT) 401, prepares for a training mission at Marine Corps Air Station Yuma, Ariz., April 10, 2019. VMFT-401 is the United States Marine Corps' only adversary squadron. The squadron is manned by highly experienced Marine fighter pilots. (U.S. Marine Corps photo by Pfc. Hall) - U.S. Marine Corps Lt. Col. Chad Fitzgerald, a pilot assigned to Marine Fighter Training Squadron (VMFT) 401, prepares for a training mission at Marine Corps Air Station Yuma, Ariz., April 10, 2019. VMFT-401 is the United States Marine Corps' only adversary squadron. The squadron is manned by highly experienced Marine fighter pilots. (U.S. Marine Corps photo by Pfc. Hall)

U.S. Marines with Marine Aerial Refuel Squadron VMGR-252 conduct an aerial refuel for a CH-53 in support of Weapons and Tactics Instructor (WTI) course 2-19 in Yuma, Ariz., April 6, 2019. WTI is a seven-week training event which emphasizes operational integration of the six functions of the Marine Corps aviation in support of a Marine Air Ground Task Force. WTI also provides standardized advanced tactical training and certification of unit instructor qualifications to support Marine aviation training readiness and assists in developing and employing aviation weapons and tactics. (U.S. Marine Corps photo by Pfc, John Hall) - U.S. Marines with Marine Aerial Refuel Squadron VMGR-252 conduct an aerial refuel for a CH-53 in support of Weapons and Tactics Instructor (WTI) course 2-19 in Yuma, Ariz., April 6, 2019. WTI is a seven-week training event which emphasizes operational integration of the six functions of the Marine Corps aviation in support of a Marine Air Ground Task Force. WTI also provides standardized advanced tactical training and certification of unit instructor qualifications to support Marine aviation training readiness and assists in developing and employing aviation weapons and tactics. (U.S. Marine Corps photo by Pfc, John Hall)

U.S. Marine Corps Capt. Robert Attebury, a KC-130 Hercules Pilot assigned to Marine Aerial Refueler Squadron (VMGR) 252, poses for a photograph after his flight on the flightline of Million Air in Yuma, Ariz., April 3, 2019. (U.S. Marine Corps photo by Cpl. Sabrina Candiaflores) - U.S. Marine Corps Capt. Robert Attebury, a KC-130 Hercules Pilot assigned to Marine Aerial Refueler Squadron (VMGR) 252, poses for a photograph after his flight on the flightline of Million Air in Yuma, Ariz., April 3, 2019. (U.S. Marine Corps photo by Cpl. Sabrina Candiaflores)