CLEAR SIGNALS U.S. Navy Seaman Matthew Rivera signals to sailors aboard the aircraft carrier USS Carl Vinson from the guided-missile cruiser USS Bunker Hill during an underway replenishment in the Atlantic Ocean, March 11, 2010. The Carl Vinson and the Bunker Hill are participating in Southern Seas, a U.S. Southern Command-directed operation to provide U.S. and other forces the opportunity to operate in a multinational environment. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 891543-O-EOI03-591.jpg Photo Gallery