Give at least a couple of cheers for coercive diplomacy, which is to say diplomacy through bombing. As the Prussian military strategist Carl von Clausewitz told us a couple hundred years ago, "war is the continuation of politics," or diplomacy, "by other means." Last week's bombing may well have finally pushed Iran and all their internal factions to at least signing a memo of understanding that represents at least the beginning of the end of the war. President Trump is a master at coercive diplomacy. He's a ...