In recent weeks, optimism has been the main feature of analysis regarding Ukraine’s chances this summer, as Kyiv gears up for a major offensive. The failure of Russian forces to gain any significant territory since the winter has, quite understandably, excited Western pundits. But there is a risk that we are over-estimating Kyiv’s abilities and becoming complacent in the process.Ukraine’s defence minister, Oleksii Reznikov, is now trying to damp down expectations. “It is definitely overheated – everyone wants another victory,” he says. “We didn’t believe in victory before. We used to want Ukraine to survive at least minimally.” His words...