U.S. Marine Corps Capt. Brian C. Kimmins, AV-8B Harrier

U.S. Marine Corps Capt. Brian C. Kimmins, AV-8B Harrier pilot with 13th Marine Expeditionary Unit, 1st Marine Expeditonary Force utilizes the Kill Switch system during offensive air support at Yodaville, Ariz., April 5, 2017. Weapons and Tactics Instructor Course (WTI) is a seven-week training event hosted by MAWTS-1 cadre, which emphasizes operational integration of the six functions of Marine Corps aviation in support of a Marine Air Ground Task Force and 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. Justin M. Smith)