Welcome to the end of the world, folks. In a surprise upset, it's not going to be runaway climate change, post-peak-oil crisis, or a massive disease epidemic, but a come-from-behind victory for nuclear armageddon.
Russia Has Threatened Nuclear Attack, Says Ukraine Defence Minister (Newsweek)
“The Russian side has threatened on several occasions across unofficial channels that, in the case of continued resistance they are ready to use a tactical nuclear weapon against us,” Heletey’s statement reads.
...
Putin also alluded to potential nuclear conflict when he told Russian youth campers last week: "Thank God, I think no one is thinking of unleashing a large-scale conflict with Russia," he said. "I want to remind you that Russia is one of the leading nuclear powers.”