If any nation decides to attack Russia with nuclear weapons, it may end life on Earth; but unlike the aggressors, the Russians are sure to go to heaven, President Vladimir Putin has said. “Any aggressor should know that retribution will be inevitable and he will be destroyed… The Russian nuclear doctrine allows for the use of this weapon in a conventional conflict, but only if Russia’s existence is at stake. This presumably gives the Russian military a loophole to use tactical nuclear weapons in the case of a large-scale invasion. The self-imposed restrictions are less harsh than a complete ‘no-first-use’ pledge, which was dropped by Moscow in 1993. – RT