The Department of War awarded a contract modification to General Dynamics Electric Boat on July 29 for five Columbia-class ballistic missile submarines and additional Virginia-class attack boats, one of the largest shipbuilding contracts in U.S. history.
The Columbia-class submarines will replace the aging Ohio-class fleet as the sea-based leg of America’s nuclear triad, which also includes land-based intercontinental ballistic missiles and strategic bombers. The Ohio-class boats have served as the backbone of the nation’s nuclear deterrent since the 1980s and are approaching the end of their service lives.
The contract supports construction at Electric Boat’s facilities in Groton, Connecticut, and Quonset Point, Rhode Island, where thousands of skilled shipbuilders and engineers will work on the program over the coming decade. The award is expected to sustain and expand the domestic shipbuilding workforce at a time when defense officials have raised concerns about the health of the U.S. industrial base.
The Columbia-class program has been designated the Department of War’s top acquisition priority. Each submarine will carry 16 Trident II D5 submarine-launched ballistic missiles capable of delivering nuclear warheads.
The Navy has emphasized that the Columbia program cannot be delayed without creating a gap in the nation’s strategic deterrent capability. The first boat in the class is expected to begin deterrent patrols in the early 2030s.
The Virginia-class attack submarines included in the contract support a separate but related effort to expand the Navy’s undersea warfare fleet amid growing competition with China and Russia in the Pacific and Atlantic oceans.
Defense analysts have described the combined award as a generational investment in American sea power that will shape U.S. strategic posture for decades.