Petty Officer 1st Class Justin Abold, a boatswain’s mate and the lead instructor at the Coast Guard’s National Ice Rescue School, demonstrates a rescue technique with Chief Petty Officer Jesse Green, a machinery technician with Coast Guard Sector Detroit’s Ready for Operations Team, during ice rescue training on Devil’s Lake near Kotzebue, Alaska, April 18, 2014. Coast Guard personnel in the 9th District, which encompasses the Great Lakes, brought their ice rescue expertise to Alaska’s Arctic region to cross train with locals as part of operation Arctic Shield 2014. (U.S. Coast Guard photo by Petty Officer 3rd Class Grant DeVuyst)