It was almost midnight in Brussels and the leaders of Europe were locked in their fifth hour of an emergency meeting with a single theme for discussion: how to manage a breakup with America. The new year was only three weeks old and President Trump, after removing Venezuela’s autocratic strongman, had briefly threatened to seize Greenland from Denmark. Around a circular table in the European Council headquarters known as “The Space Egg,” heads of government were venting so emotionally about the 47th president that some of the nearly 30 leaders present would later call the session “therapy night.” There were…