U.S. Navy Petty Officer 3rd Class Elan Landin signals to a Uruguayan helicopter from Uruguayan navy frigate Uruguay (ROU 1) aboard the guided-missile cruiser USS Bunker Hill (CG 52) during deck landing qualifications in the Atlantic Ocean on March 7, 2010. The Uruguay, the Bunker Hill and the aircraft carrier USS Carl Vinson (CVN 70) are participating in Exercise Southern Seas 2010, a U.S. Southern Command-directed operation.