SOUTH CHINA SEA (Oct. 14, 2021) Sailors assigned to Independence-variant littoral combat ship USS Charleston (LCS 18), await the setting of the fuel probe during an underway replenishment with Fleet replenishment Oiler USNS Big Horn (T-AO 198). Charleston, part of Destroyer Squadron Seven, is on a rotational deployment in the U.S. 7th Fleet area of operation to enhance interoperability with partners and serve as a ready-response force in support of a free and open Indo-Pacific region. (U.S. Navy photo by Mass Communication Specialist 2nd Class Ryan M. Breeden)