181209-N-GY475-0071 ATLANTIC OCEAN (Dec. 9, 2018) Chief Aviation Boatswain's Mate (Handling) Michael Steinbeck briefs Sailors prior to a mass casualty drill on the flight deck aboard the Nimitz-class aircraft carrier USS Harry S. Truman (CVN 75). Harry S. Truman will continue to foster cooperation with regional allies and partners, strengthen regional stability, and remain vigilant, agile and dynamic. (U.S. Navy photo by Mass Communication Specialist 3rd Joseph A.D. Phillips/Released)