Russia has successfully tested the Poseidon, a nuclear-capable, nuclear-powered underwater drone, announced by President Vladimir Putin. The weapon is described as a superweapon with capabilities to travel at high speed and operate at great depths, making it virtually impossible to intercept. The Poseidon can carry nuclear or conventional payloads and is designed to unleash radioactive tsunamis capable of devastating coastal cities and naval bases. Putin emphasized that the test marked the drone’s activation on nuclear power for the first time, describing it as a significant technical breakthrough. The Poseidon is part of Russia’s broader strategy of developing advanced nuclear deterrent systems aimed at countering Western missile defenses, with experts noting its potential to trigger widespread destruction and radioactive contamination in targeted coastal regions.