180828-N-TT202-038 ATLANTIC OCEAN (Aug. 28, 2018) Sailors check vital signs of a patient in the aft mess decks during a mass-casualty drill on the Nimitz-class aircraft carrier USS Abraham Lincoln (CVN 72). Abraham Lincoln is underway with Carrier Strike Group 12 (CSG 12) conducting Operational Test-1 (OT-1) for the F-35C Lighting II Joint Strike Fighter. (U.S. Navy photo by Mass Communication Specialist 3rd Class Daniel E. Gheesling/Released)