I’m not sure most Americans appreciate the monumental damage President Donald Trump is doing to the post-World War II order that is the wellspring of American global leadership and affluence. He’s shattering it. He’s making the world more dangerous. He’s siding with an alleged war criminal, President Vladimir Putin of Russia, and poisoning relations with longtime U.S. allies. The trans-Atlantic alliance is unraveling. “We have Trump and his oligarchy of ignorant shoe shiners vandalizing the network of organizations, agreements and values — largely put in place by America since the Second World War — which have given most of us,...