We may puzzle over just what the Prince thought Putin has in common with the late Führer. The Russian president could scarcely be accused of wanting to invade Russia. As far as we know, he hasn’t yet set up mass-extermination camps. More sympathetic observers have suggested that Prince Charles must have been comparing Putin’s absorption into Russia of Crimea with Nazi Germany’s seizure (with Britain’s blessing) of the Czech Sudetenland in 1938. But if this was what he was thinking, it is hard to equate it with the vote of 96 per cent of Crimeans to return to a country of which Crimea had been part for most of 230 years,