The Canadian destroyer HMCS Algonquin (DDG 283) arrives at Joint Base Pearl Harbor-Hickam to participate in the theater anti-submarine warfare phase of the Submarine Commander's Course and a task group exercise (TGEX). The exercise is scheduled to take place off the coast of Oahu along with the guided-missile cruiser USS Port Royal (CG 73), the guided-missile destroyer USS Chafee (DDG 90), Helicopter AntiSubmarine Squadron Light 37 (HSL 37), the Military Sealift Command fleet replenishment oiler USNS Guadalupe (T-AO 200), and several Hawaii-based submarines. (U.S. Navy photo by Mass Communication Specialist 2nd Class Daniel Barker/Released)