As the Ukraine conflict drags on and Russia nears completion of its nuclear modernization effort, experts ask: how many ...

Russia’s Delta IV-class (Project 667BDRM Delfin) nuclear ballistic missile submarines (SSBNs), introduced in the 1980s, ...

The class is powered by a VM-5 pressurized water reactor generating approximately 190 megawatts of thermal energy, and the ...

The UK government has laid out ambitions to significantly expand the Royal Navy's (RN's) nuclear-powered attack submarine ...

There have been four iterations of the Delta-class submarines, designed to serve as a key element of the Soviet Union’s nuclear deterrence strategy.