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The Marines conducted the training utilizing buoys to detect underwater acoustics for ships and submarines in order to increase U.S. naval forces capabilities to detect and deter in the undersea domain. The 31st MEU is operating aboard ships of the USS America Amphibious Ready Group in the 7th Fleet area of operations, the U.S. Navy’s largest forward-deployed numbered fleet, and routinely interacts and operates with allies and partners in preserving a free and open Indo-Pacific region. Workman is a native of Indiana. (U.S. Marine Corps photo by Cpl. Alora Finigan)

250808-M-MI274-1083

U.S. Marine Corps photo by Cpl. Alora Finigan/Released 250808-M-MI274-1083.JPG

Aug 12, 2025

U.S. Marine Corps Sgt. Mason Workman, an aerial observer with Marine Medium Tiltrotor Squadron (VMM) 265 (Rein.), 31st Marine Expeditionary Unit, sets parameters for the directional command activated sonobuoy system buoy during anti-submarine warfare training, in the Philippine Sea, Aug. 8, 2025.

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