U.S. Marine assigned to 1st Battalion, 5th Marine Regiment, 1st Marine Division, prepare to conduct assault support tactics during Weapons and Tactics Instructor Course (WTI) 2-15 near Yuma, Ariz., April 13, 2015. WTI is a seven-week event hosted by Marine Aviation Weapons and Tactics Squadron One (MAWTS-1) cadre. MAWTS-1 provides standardized 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. Jodson B. Graves, 2d MAW Combat Camera/Released)