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NAVAL BASE GUAM (August 31, 2025) Cmdr. Greg Storer, commanding officer, USS Springfield (SSN 761), left, and Lt. Cmdr. Juan Diaz, center, man the conning tower of the Los Angeles-class fast-attack submarine, August 31, 2025. Springfield returns to Guam after completing a routine deployment in the Indo-Pacific. Assigned to Commander, Submarine Squadron 15, based at Polaris Point, Naval Base Guam, Springfield is one of five forward-deployed fast-attack submarines. Renowned for their unparalleled speed, endurance, stealth, and mobility, fast-attack submarines are the backbone of the Navy’s submarine force. Regarded as apex predators of the sea, Guam’s fast-attack submarines serve at the tip of the spear, helping to reaffirm the submarine force's forward-deployed presence in support of a free and open Indo-Pacific. (U.S. Navy photo by Lt. James Caliva)