U.S. Navy advances Trident II missile and new warhead modernization to sustain sea-based nuclear deterrence

The U.S. Navy is advancing Trident II D5 missile life-extension and W93 warhead modernization to maintain its sea-based nuclear deterrent. Programs include propulsion, guidance and reentry body upgrades. Work supports Ohio- and Columbia-class SSBNs. Long-term sustainment runs through the 2080s.