ATLANTIC OCEAN (Feb. 9, 2011) Gunner's Mate 1st Class Melissa R. Gibson, right, assigned to the guided-missile cruiser USS Monterey (CG 61), mans an M240B machine gun while Chief Master-at-Arms Lawrence D. Klein relays information through the ship's phone system during a simulated straits transit exercise. Monterey is conducting a composite training unit exercise as part of the George H.W. Bush Carrier Strike Group. (U.S. Navy photo by Mass Communication Specialist 3rd Class Sandi L. Grimnes/Released)