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An MH-60R Sea Hawk assigned to Helicopter Maritime Strike Squadron (HSM) 77 lands on the flight deck of the forward-deployed aircraft carrier USS Ronald Reagan (CVN 76) during Keen Sword 19. Keen Sword 19 is a joint, bilateral field-training exercise involving U.S. military and Japan Maritime Self-Defense Force personnel, designed to increase combat readiness and interoperability of the Japan-U.S. alliance.