160922-N-OH262-130 NORFOLK, VA. (Sept. 22, 2016) U.S. Navy medical personnel attached to Military Sealift Command's hospital ship USNS Comfort (T-AH 20) transport a simulated battle casualty during a mass casualty drill aboard the vessel. The drill was part of the ship's Comfort Exercise (COMFEX). (U.S. Navy photograph by Bill Mesta/Released)