Russia’s Poseidon Test: The Underwater “Doomsday Drone” Redefining Nuclear Deterrence
Moscow’s Deep-Sea Power Play Russia has taken another dramatic step in modernizing its nuclear arsenal. On October 29, 2025, President Vladimir Putin announced the successful test of the Poseidon—a nuclear-powered, nuclear-armed underwater drone capable of traversing oceans autonomously. The announcement came just days after the trial of the Burevestnik nuclear-powered cruise missile, signaling Moscow’s determination to project…



