M1A1 Abrams battle tanks scan for targets during a combined arms range for Iron Wolf 17 at Camp Lejeune, N.C., July 14, 2017. Iron Wolf 17 is a multi-unit exercise designed to simulate battlefield conditions Marines may face while deployed. The tanks are from 2nd Tank Battalion, 2nd Marine Division. (United States Marine Corps photo by Cpl. Jon Sosner) - M1A1 Abrams battle tanks scan for targets during a combined arms range for Iron Wolf 17 at Camp Lejeune, N.C., July 14, 2017. Iron Wolf 17 is a multi-unit exercise designed to simulate battlefield conditions Marines may face while deployed. The tanks are from 2nd Tank Battalion, 2nd Marine Division. (United States Marine Corps photo by Cpl. Jon Sosner)