190707-N-DZ398-0080 ATLANTIC OCEAN (July 7, 2019) Sailors set up an aircraft barricade during flight deck drills aboard the Nimitz-class aircraft carrier USS Harry S. Truman (CVN 75). Harry S. Truman is underway conducting a composite training unit exercise with the Harry S. Truman Carrier Strike Group. (U.S. Navy photo by Mass Communication Specialist Seaman Donovan M. Jarrett/Released)