USS Columbia (SSN-771) is the 21st flight III, or Improved (688i) Los Angeles -class attack submarine of the United States Navy. Commissioned in 1995, the submarine is assigned to …

Dec 9, 2025 · Columbia, the last 688 class submarine to be built at Electric Boat Shipyard in Groton, was commissioned in 1995. It is also the last submarine in the history of the program …

10 hours ago · The Columbia-class submarine is the backbone of U.S. nuclear deterrence—explore its design, cost, timeline, and strategic role in this in-depth guide.

Jun 5, 2025 · (Scott Barnes/U.S. Navy) The Los Angeles-class fast-attack submarine USS Columbia returned to Joint Base Pearl Harbor-Hickam in Hawaii on Sunday following a seven …

Jun 4, 2025 · Columbia departed Pearl Harbor in November 2024 for the regularly scheduled deployment, during which the submarine and its crew performed a full spectrum of operations …

The official U.S. Navy website for Commander, Submarine Force, U.S. Pacific Fleet.

The upcoming Columbia class (formerly known as the Ohio Replacement Submarine and SSBN-X Future Follow-on Submarine) are nuclear -powered ballistic missile submarines of the United …