180919-M-ZX532-661 YUMA, Ariz. (Sept. 19, 2018) U.S. Marines assigned to Marine Aviation Weapons and Tactics Squadron (MAWTS) 1 conduct a hot fueling and reloading of weapons during Weapons and Tactics Instructor (WTI) course 1-19 at Laguna Army Air Field, Yuma, Arizona, Sept. 19, 2018. WTI is a seven-week training event hosted by MAWTS-1, which emphasizes operational integration of the six functions of Marine Corps aviation in support of a Marine air-ground task force. WTI 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 Lance Cpl. Alexia Lythos/Released)