U.S. Army Staff Sgt. Owen Cunningham, A Company, 2nd Battalion, 210th Aviation Regiment, 128th Aviation Brigade senior instructor/writer, conducts a tour of the inside of cargo helicopter maintenance trainer during a visit from Canadian Air Cadets from the 180th Mosquito Squadron at Fort Eustis, Va., March 12, 2014. The 2-210th Avn. Rgt. conducts Advanced Individual Training, noncommissioned officer advance courses, and warrant officer maintenance training for the CH-47 Chinook and UH-60 Black Hawk helicopters. (U.S. Air Force photo by Staff Sgt. Katie Gar Ward/Released)