ATLANTIC OCEAN (Aug. 31, 2021) A Canadian sailor and a U.S. Coastguardsman aboard the Canadian commercial container ship MV Asterix discuss boundaries for a visit, board, search and seizure exercise alongside the Arleigh Burke-class guided-missile destroyer USS Forrest Sherman (DDG 98). Forrest Sherman participates in Exercise Frontier Sentinel alongside U.S. Coast Guard, and Canadian Allies to enhance their Arctic capabilities. (U.S. Navy Photo by Mass Communication Specialist Seaman Theoplis Stewart II)