Columbia-Class Submarine NewsLatest News On Columbia-Class Submarine US pushes for nuclear-powered ballistic missile Columbia-class submarines with new contract3/20/2026 8:16 AM US Navy strengthens sea-based nuclear deterrent with Trident II control upgrade3/6/2026 4:34 AM Largest-ever US nuclear submarine gets final propulsor, packs 16-nuke missiles4/16/2025 8:12 AM USAF secretary nominee pledges to fast-track Sentinel nuclear ICBM deployment3/27/2025 6:52 PM
