Petty Officer 1st Class David Bradbury (left) and Petty Officer 2nd Class Brian Lehuede, Coast Guard divers deployed to the Coast Guard Cutter Healy, conduct checks before diving below the surface of the Arctic Ocean, Aug. 1, 2017. Divers are the Coast Guard’s primary resource for subsurface operations, including underwater inspections and maintenance on icebreakers and other cutters. U.S. Coast Guard photo by Senior Chief Petty Officer Rachel Polish