130205-N-TX154-417 YOKOSUKA, Japan (Feb. 5, 2013) - Sailors cross the brow during a hull swap ceremony between the Ticonderoga-class guided-missile cruisers USS Cowpens (CG 63) and USS Antietam (CG 54). Hull swaps, or ship rotations, are part of the Navy’s long-term plan to routinely replace older ships with newer more capable ships. Antietam is relieving Cowpens at Fleet Activities Yokosuka. (U.S. Navy photo by Mass Communication Specialist 3rd Class Paul Kelly/Released)