Can one seismic shock upset the equilibrium of nuclear deterrence? That question was brought into stark relief by the recent 8.8-magnitude earthquake off Russia’s Kamchatka Peninsula, which pounded the Rybachiy submarine base,

Kremlin spokesman Dmitry Peskov downplayed the significance of Trump's remarks, made last Friday, in which Trump said he had ordered the deployment of two US nuclear submarines to "the appropriate regions" in response to statements by former Russian President Dmitry Medvedev regarding the risk of war between nuclear powers.

US President Donald Trump has said that US nuclear submarines are near Russian territory after earlier saying he would make this move in response to threats from former Russian president Dmitry Medvedev.