The U.S. Navy has commissioned its newest fast-attack submarine, the USS Idaho, marking the vessel’s official entry into active service and the culmination of a multiyear construction program.
The ceremony took place April 25 at Naval Submarine Base New London, where Navy officials, crew members, and guests gathered to formally bring the submarine into the fleet. The commissioning makes Idaho the 26th Virginia-class submarine and the eighth built to the Block IV configuration.
Speaking at the event, acting Navy secretary Hung Cao emphasized the platform’s role in maintaining secure maritime trade routes and supporting U.S. global operations. “The USS Idaho joins the fleet ready to answer the call to action, in any ocean, at any time,” he said.
Idaho is the fifth Navy vessel to carry the name, continuing a lineage that includes a battleship commissioned in 1919 that saw extensive service during World War II, earning seven battle stars.
Cmdr. Chad J. Guillerault, the submarine’s commanding officer, highlighted the connection between the crew and the vessel’s legacy. “The Idaho connection is more than a name, it is a legacy … being reborn today,” he said during the ceremony.
As part of the commissioning tradition, ship sponsor Teresa Stackley gave the order to “man our ship and bring her to life,” prompting the crew to ceremonially board the submarine.
The Idaho is designed as a nuclear-powered, multimission platform supporting anti-submarine warfare, intelligence gathering, and special operations. Virginia-class submarines are built with a focus on stealth, endurance, and adaptability across a range of mission profiles.
The 377’x34’ submarine displaces approximately 7,800 tons. Its nuclear propulsion plant is designed to last the life of the vessel without refueling, reducing maintenance requirements and increasing operational availability.
Block IV submarines incorporate design changes aimed at lowering lifecycle costs and extending deployment capacity, including reduced major maintenance periods compared with earlier boats in the class.
The addition of Idaho underscores ongoing investment in the submarine industrial base and the Navy’s emphasis on undersea dominance as a core component of U.S. maritime strategy.
