ATLANTIC OCEAN (Sept. 1, 2021) The Arleigh Burke-class guided-missile destroyer USS Forrest Sherman (DDG 98) sails alongside the Canadian Royal Navy Halifax-class destroyer HMCS Toronto (FFH 333) during a NATO training exercise. Forrest Sherman is participating 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)