Capt. Sean MacKenzie shakes hands with Capt. Gregory Fuller, Chief of Staff Coast Guard Seventeenth District, after receiving an award during a change of command ceremony at Joint Base Elmendorf-Richardson, July 15, 2020. MacKenzie was relieved by Capt. Leanne Lusk as commanding officer of Coast Guard Sector Anchorage. Sector Anchorage is the Coast Guard’s largest sector in terms of geographic area, exercising authority in a jurisdiction extending throughout Western Alaska, the North Slope, the Aleutian Islands, and Prince William Sound. U.S. Coast Guard photo by Petty Officer 2nd Class Melissa E. F. McKenzie.