Sgt. Rebecca Himmel, a medic attached to the 1-169th Aviation Regiment, prepares to board a Blackhawk helicopter to perform a joint medevac training mission during Maple Resolve 17 at Camp Wainwright, Alberta, Canada, May 16, 2017. 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, Alberta, Canada. 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.