Alexander, who goes by the military call-sign “Fortuna”, hails from Novosibirsk in Siberia, a city 4,000km east of the bar where he is sitting with other Russian fighters in Kyiv, the capital of a country that his homeland has been trying to occupy for two years. He says he is too busy in Ukraine to miss anything about Russia and does not expect to live there again anytime soon. “And anyway,” he adds, “we pop back there pretty often”. Fortuna (40) is chief of staff of the Russian Volunteer Corps (RDK), which has gained prominence with armed raids from Ukraine...