150401-N-XQ474-045 NORFOLK (April 1, 2015) Sailors man the rails aboard the Military Sealift Command hospital ship USNS Comfort (T-AH 20) as it departs Norfolk, Va., in support of Continuing Promise 2015. Continuing Promise is a series of humanitarian exercises conducted under the direction of U.S. Southern Command to provide medical, dental and veterinary aid to people in the Caribbean, Central and South America. (U.S. Navy photo by Mass Communication Specialist 3rd Class Andrew Schneider/Released)