Khabarovsk Nuclear Submarine: Russia has launched its newest nuclear-powered submarine, the Khabarovsk, a shadowy sea beast designed to carry the Poseidon nuclear drone – the infamous “doomsday missile” capable of unleashing apocalyptic chaos from the depths of the ocean. Khabarovsk Nuclear Submarine: Russia has launched its newest nuclear-powered submarine, the Khabarovsk, a shadowy sea beast designed to carry the Poseidon nuclear drone – the infamous “doomsday missile” capable of unleashing apocalyptic chaos from the depths of the ocean.