Donald Trump has cast himself as “the president of peace”. He presents himself as a leader who ends endless wars, brings troops home and rejects foreign entanglements. It is a beguiling conceit: in his world, war is defined only by mass landings and protracted occupations. Deaths from drones or missiles? They remain invisible footnotes in his narrative. However, peace is not absence; it is restraint. On that count, Trump fails entirely. In recent weeks, the US has carried out multiple strikes on...