NUUK, Greenland -- (Aug. 10, 2021) Ensign William Sergio, an officer assigned to the 270-foot Famous-class medium endurance cutter USCGC Escanaba (WMEC 907), gives a navigation brief to the crew before departing port in Nuuk for Operation Nanook. The U.S. Coast Guard is again participating with Partners in Operation Nanook, an annual sovereignty operation and maneuver warfare exercise conducted by the Canadian Armed Forces in the Arctic. (U.S. Coast Guard photo by Petty Officer 3rd Class Dyxan Williams)