Sgt. Christopher Raynor, a crew chief with the 1-169th Aviation Regiment, prepares to embark on a joint medevac training mission during Exercise Maple Resolve 17 at Camp Wainwright, Alberta, May 16, 2017. Exercise Maple Resolve is an annual collective training event designed for any contigency operation. Approximately 4,000 Canadian and 1,000 U.S. troops are participating in Exercise Maple Resolve 17.