The Risk of Russia's Nuclear Roulette in Ukraine.

The debate in Russia about whether to use nuclear weapons in the war in Ukraine has burst into the public domain. While hawkish foreign and defence policy expert Sergei Karaganov argues that Russia should make nuclear deterrence a convincing argument again by lowering the threshold for the use of nuclear weapons, another group of Moscow-based foreign and defence policy experts believe that the idea is extremely dubious and mistaken. President Joe Biden has expressed concern about Putin using tactical nuclear weapons, and the danger is real.