By Mark Galeotti director of consultancy Mayak Intelligence and honorary professor at UCL School of Slavonic & East European Studies According to Sir Roly Walker, the UK’s Chief of the General Staff, while at this rate it will take Russia five years to secure all of the Donbas, the West needs to be ready for war with some unholy alliance of Russia, China, Iran and North Korea within three. Can one really imagine Vladimir Putin, still locked in conflict with Ukraine, also taking on Nato? And with what? At times, there almost seems to be some kind of bidding war between officials and commentator…