Vladimir Putin warned that his troops carried out a "successful test" of his new "unstoppable" deadly underwater weapon. The Kremlin dictator boasted about his Poseidon high speed torpedo , that was tested this week. It is designed to carry a nuclear warhead and is powered by its one atomic reactor, as Russian experts claim it could trigger tidal waves and lay waste to islands and coastal regions. Moscow terrifyingly sees the underwater nuclear drone as a crucial weapon if Putin triggers World