U.S. Marines attending the infantry officers course establish a perimeter during fast rope training in preparation for Talon Reach during Weapons and Tactics Instructor Course (WTI 2-15) at Auxiliary Airfield 2 near Yuma, AZ., March 26, 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)