U.S. Coast Guard Lt. Cmdr. Patrick Armstrong (left), commanding officer of U.S. Coast Guard Cutter Maple, rides aboard a Canadian Coast Guard small boat near Barrow, Alaska, after meeting with members of the Canadian Coast Guard aboard ice breaker Sir Wilfrid Laurier, July 24, 2017. The crews of Sir Wilfrid Laurier and fishing vessel Frosti, a Canada Department of Fisheries and Oceans-commissioned boat, went on to lead the way through the ice east of Barrow, Alaska, in support of U.S. Coast Guard Cutter Maple's transit through the Northwest Passage to the Atlantic Ocean. (U.S. Coast Guard photo by Petty Officer 2nd Class Nate Littlejohn/Released)