An undated artist’s rendering of the planned Columbia-class submarine. Naval Sea Systems Command Image
To maintain a credible nuclear threat, the U.S. needs at least 12 Columbia-class ballistic missile submarines, says the Navy’s director of undersea warfare.
The first Columbia-class SSBN submarine is not expected to join the fleet until 2027, but Navy officials and analysts are already making the case to extend the program of record beyond what is currently envisioned to be a fleet of 12 SSBNs.
“I...