The Coast Guard Cutter Healy, a medium icebreaker, sits in the Chukchi Sea off the coast of Alaska during an Arctic deployment in support of scientific research and polar operations, Saturday, July 29, 2107. The Coast Guard’s leadership role in providing a continued Arctic presence is essential to national security, maritime domain awareness, freedom of navigation, U.S. sovereign interests and scientific research. U.S. Coast Guard photo by Petty Officer 2nd Class Meredith Manning