Columbia-Class: The Navy's New Missile Submarine Faces 'Significant Delays' The U.S. Navy's Columbia-class ballistic missile submarine program is encountering significant delays and cost overruns ...
India’s second nuclear-capable ballistic missile submarine joined ... including six operational Jin-class nuclear-powered ballistic submarines that outclass India’s two – Arighaat and ...
and buy 12 Columbia-class submarines to replace the existing fleet of 14 Ohio-class ballistic missile submarines. This is the sea-based leg of the nation's strategic nuclear deterrence program.