EntityQ21467398· pop 24· linked from 238 articlesPoseidonSign in to savetype of nuclear-powered, nuclear-armed UUVConnections2K22 TunguskaEntityUnited StatesCountryRussiaCountryUnited KingdomCountryRussianEntityVladimir PutinPersonSoviet UnionConceptYouTubeConceptArctic OceanEntityArtificial intelligenceConcepttitaniumEntityCentral Intelligence AgencyEntitysubmarineEntityPoseidonEntityThe GuardianEntitynavyEntityForbesEntity2011 Tōhoku earthquake and tsunamiEntityReutersEntitymissileEntityCategoriesNaval weapons of RussiaNuclear weapons of RussiaPost–Cold War weapons of RussiaSubmarines of RussiaTsunamiUnmanned underwater vehicles