160922-N-OH262-922 NORFOLK, Va. (Sept. 22, 2016) U.S. Navy Sailors attached to Military Sealift Command's hospital ship, USNS Comfort (T-AH 20) prepare to move a simulated battle casualty onto a gurney. The Sailors took part in a mass casualty drill as part of the ship's weeklong Comfort Exercise (COMFEX). (U.S. Navy photograph by Bill Mesta/Released)