The U.S. Coast Guard Cutter Marcus Hanna sits moored next to the Canadian Coast Guard ship Edward Cornwallis in Saint John, New Brunswick, Canada, June 18, 2013. The two nations' Coast Guards trained together during a weeklong exercise in Canada, during which they tested U.S. Coast Guard skimming equipment aboard Canadian ships. (U.S. Coast Guard photo by Petty Officer 2nd Class Rob Simpson)