SWIM CALL U.S. Navy sailors serving aboard the USS Halsey participate in a swim call in the Arabian Sea, March 25, 2012. The Halsey is the flagship for Combined Task Force 151, a multinational task force that conducts counter-piracy operations on Southern Red Sea, Gulf of Aden, the Somali Basin, the Arabian Sea, and the Indian Ocean. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 870434-O-UJT85-169.jpg Photo Gallery