Lt. Gen. Charles Luckey, chief of Army Reserve and commanding general of United States Army Reserve Command, visits Soldiers with C Troop, 2nd Brigade, 10th Mountain Division, and Canadian Soldiers with the 3rd Royal Canadian Regiment on May 18, 2017, in Camp Wainwright, Alberta, Canada, during Maple Resolve 17. More than 650 U.S. Army Soldiers are supporting Maple Resolve 17, the Canadian Army’s premiere brigade-level validation exercise running May 14-29 at Camp Wainwright. As part of the exercise, the U.S. Army is providing a wide array of combat and support elements. These include sustainment, psychological operations, public affairs, aviation and medical units. (U.S. Army Reserve photo by Staff Sgt. Michael Crawford)