US arms advantage over Russia and China threatens stability, experts warn

Academics say vulnerability of the two countries' nuclear launch sites makes dangerous mistakes more likely

The US and its allies are capable of threatening and destroying all of Russia and China's nuclear launch sites with conventional weapons, creating what two experts describe as a potentially unstable geopolitical situation.

Prof Dan Plesch and Manuel Galileo, from Soas University of London, describe a quiet revolution in military affairs" reflecting increased US military power relative to Moscow and Beijing, particularly in missile technology.