The National Interest:
The Borei represents only half of the Russian Navy’s future sea-based nuclear deterrence force. The other half will come from a unique fleet of four Khaborovsk-class submarines each carrying six nuclear-powered Poseidon drone-torpedoes designed to swim across oceanic distances to blast coastal cities and naval bases with megaton-yield warheads. Moscow, it seems, would like a little more redundancy in its ability to end civilization as we know it in the event of a nuclear conflict.
On May 22, 2018, the Russian submarine Yuri Dolgoruky slipped beneath the waves of the Arctic White Sea. Hatches along the submerged boat’s spine opened, flooding the capacious tubes beneath. Moments later, an undersea volcano seemingly erupted from the depths.
