PACIFIC OCEAN (July 27, 2021) Engineman 3rd Class Omar Valdivia, from Whittier, Calif., pours potable water into a test vial during a potable water test in the main engine room aboard the Independence-variant littoral combat ship USS Jackson (LCS 6). The littoral combat ship (LCS) is a fast, agile, mission-focused platform designed to operate in near-shore environments, winning against 21st-century coastal threats. The LCS is capable of supporting forward presence, maritime security, sea control, and deterrence. (U.S. Navy photo by Mass Communication Specialist 3rd Class Kelsey S. Culbertson)