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Adm. Steve Koehler, commander, U.S. Pacific Fleet, center left, interacts with Sailors assigned to Naval Mobile Construction Battalion (NMCB) 3 – Antarctica Detachment during a tour of McMurdo Station while in Antarctica, Feb. 12, 2026. Koehler visited Antarctica to meet with service members assigned to Joint Task Force-Support Forces Antarctica, deployed in support of Operation Deep Freeze, which provides logistic support for the U.S. Antarctic Program. The U.S. is committed to a free and open Indo-Pacific region, and trains the military to support the U.S. National Science Foundation programs located in one of the most challenging and austere environments on the planet. (U.S. Navy photo by Builder 2nd Class Komlan Adjassem)