160217-N-OH262-6519-NORFOLK, Va. (Februrary 17, 2016)--U.S. Navy Sailors, attached the Arleigh Burke class guided missle destroyer USS Nitze (DDG 94), cast off mooring lines to Military Sealift Command's USNS Comfort (T-AH 20) at Naval Station Norfolk, Virginia, Feb. 17. Comfort went to sea as part of their COMFEX, a battery of training evolutions designed to sharpen the skills of the medical professionals and Civil Service Mariners who crew the vessel. (U.S. Navy Photograph by Public Affairs Specialist Bill Mesta)