In a striking escalation of the global arms race, Russia has tested its Poseidon nuclear-capable torpedo, a weapon President Vladimir Putin claims is unmatched and designed to evade every known missile defense system. Publicly revealed in 2015, Poseidon achieved a successful submarine-launched test in late October 2025. Its power and purpose are fueling strategic debates and public nightmares worldwide (Reuters).
Poseidon Superweapon: Range, Power, and Catastrophic Design
Poseidon is not an ordinary submarine-launched nuclear system. It functions as an autonomous underwater vehicle, capable of traveling up to 10,000 kilometers at nearly 185 km/h—launching from specialized submarines like the Belgorod. Its design merges the concepts of a colossal torpedo and a strategic drone, remaining submerged for months before activation for devastating effect. During the recent test, Putin emphasized the successful launch of both the weapon and its nuclear power unit, asserting “there is nothing like this” worldwide.
Military analysts suggest Poseidon is engineered to obliterate enemy coastlines, delivering a nuclear payload that could create immense radioactive oceanic waves—an alarming evolution of nuclear strategy. For a deeper understanding of the broader arms escalation, see this ongoing escalation drill analysis and the shadow of missile innovation over global diplomacy in this geopolitical report.
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Cobalt Bomb Fallout: Why the Poseidon Is ‘Worse Than a Nuke’
Why is Poseidon particularly alarming? Global experts and Western intelligence assert that its warhead may utilize a “cobalt bomb” design, with a yield possibly reaching 100 megatons—double that of the infamous Tsar Bomba. When detonated near a coastline, it could cause not only a catastrophic explosion but also long-lasting radioactive contamination. Specialist reviews in Newsweek indicate that the detonation could render an area 1,700 km long and 300 km wide uninhabitable due to radioactive cobalt fallout. This fallout—distinct from traditional underwater nuclear strikes—could turn vast ocean areas into dead zones, with radioactive “tsunamis” devastating everything in their path.









