A Coast Guard Ensign signals the crew of a Coast Guard helicopter during a training exercise on the U.S. Coast Guard Cutter Stratton as part of Operation Arctic Shield 2016. As part of Arctic Shield 2016, the Coast Guard will deploy cutters, aircraft, and personnel to the region to engage in operations encompassing a variety of Coast Guard missions across the North Slope. (U.S. Coast Guard photo by Lt.j.g. Gina Caylor)