U.S. Marines with India Battery, 11th Marine Regiment, 1st Marine Division, conduct a live fire exercise as part of Weapons and Tactics Instructor (WTI) course 2-19 in Yuma, Ariz., April 17, 2019.
WTI is a seven week training event hosted by Marine Aviation Weapons and Tactics Squadron One, which emphasizes operational integration of the six functions of Marine Corps aviation in support of a Marine Air Ground Task Force. (U.S. Marine Corps photo by Lance Cpl. Andres Hernandez) Original public domain image from Flickr