The guided-missile destroyer USS Barry (DDG 52), (front) pulls into formation with the French Marine Nationale anti-submarine frigate Jean de Vienne (D 643) during Exercise Proud Manta 2013 (POMA 13) in this February 26, 2013 handout photo provided by the US Navy. The USS Barry is one of the four US guided missile destroyers in the eastern Mediterranean Sea on standby as the Syria crisis develops. The ships can carry a maximum of 90 to 96 Tomahawk cruise missiles, each with a range of about 1,000 miles (1,610 km).[Photo/Agencies]