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A Sailor sweeps spaces as a part of the backup reaction force team during a simulated anti-terrorism drill aboard the Arleigh Burke-class guided-missile destroyer USS Gridley (DDG 101) in the South China Sea, May 10, 2025. The Gridley, assigned to the Nimitz Carrier Strike Group, is underway in the U.S. 7th Fleet area of operations on a scheduled deployment, demonstrating the U.S. Navy's unwavering commitment to a free and open Indo-Pacific. (U.S. Navy photo by Mass Communication Specialist 2nd Class Timothy Meyer)