160922-M-FS068-0258 YUMA, Ariz. (Sept. 22, 2016) U.S. Marines with Marine Fighter Attack Squadron 121 (VMFA-121), 3rd Marine Aircraft Wing, conduct the first hot load on a F-35B Lightning II in support of Weapons and Tactics Instructors (WTI) 1-17 at Marine Corps Air Station Yuma, Ariz. This exercise was part of WTI 1-17, a seven week training event, hosted by Marine Aviation Weapons and Tactics Squadron One (MAWTS-1) cadre, which emphasizes operational integration of the six functions of Marine Corps aviation in support of a Marine Air Ground Task Force. MAWTS-1 provides standardized advanced tactical training and certification of unit instructor qualifications to support Marine Aviation Training and Readiness and assists in developing and employing aviation weapons and tactics. (U.S. Marine Corps photo by Cpl. AaronJames Vinculado/Released)