Kings and rulers: When the crown goes to the head

America was born in revolt against a mad king who forced a tax on tea. The exit of King George III and the formation of the US of A is a chapter of history that aged well. Or that’s what we thought till the world found itself in a familiar place again. The 47th US President has, effectively, imposed a tariff on Americans today. The yo-yo of words and events is dizzying. On Wednesday, Donald J Trump declared victory in Operation Epic Fury. On Friday, he said the war would take two more weeks, as Iran shot down an F15-E…