Petty Officer 1st Class Alexis Lopez, a boatswain's mate with the National Ice Rescue School, oversees a simulated ice rescue demonstration and offers advice as members of the Coast Guard and members of the Kotzebue Fire Department enter and exit the icy water in Kotzebue, Alaska, March 19, 2019. Lopez is part of a specialized ice rescue team from the Great Lakes that traveled to the Arctic to teach and train Seventeenth District Coast Guard members and the Kotzebue Fire Department members to increase their response capabilities. U.S. Coast Guard photo by Chief Petty Officer Matthew Schofield.