Oregon Air National Guard Staff Sgt. Tyler O;Bryant (right), assigned to the 142nd Fighter Wing Civil Engineer Squadron, discusses a tree core sample with Canadian Armed Forces Private Corey Blackmore (left) during a rest break while clearing trees at Niven Lake, Yellowknife, Northwest Territories, Canada, July 24, 2017. The Oregon Airmen are also collaborating with Canadian Armed Forces members from Cold Lake, Alberta, who are also deployed to Yellowknife for training. (U.S. Air National Guard photo/Master Sgt. John Hughel, 142nd Fighter Wing Public Affairs)
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