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210825-N-WU807-1081 PHILIPPINE SEA (Aug. 25, 2021) Hull Maintenance Technician 1st Class Jacob Williams, right, from Simi Valley, Calif., tests a portable exothermic cutting unit and Mineman 2nd Class Santiago Lopez, from Bronx, N.Y., stands by with a fire extinguisher aboard Independence-variant littoral combat ship USS Charleston (LCS 18), Aug. 25.