Last week, the German Chancellor, Friedrich Merz, offered a gloomy appraisal of the war in Iran, a two-month-long conflict that has devolved into a standoff in the Persian Gulf. A ceasefire is now in place, but it’s fragile: the U.S. has blockaded Iranian ports and vessels; Iran has attempted strikes on U.S. ships; and, in the midst of negotiations over the Strait of Hormuz, President Donald Trump is reportedly considering whether to resume hostilities. “The Iranians are clearly stronger than expected, and the Americans clearly have no truly convincing strategy in the negotiations, either.…An entire nation is being humiliated by the Iranian leadership,” Mertz said—a notable shift from his cautious support for regime change in Iran. Trump fired back, vowing to withdraw U.S. forces that have been stationed in Germany for decades. The episode fits a pattern that has played out in Europe and the Middle East, wherein Trump makes new threats, punishes perceived slights, and shows little regard for allies or for the broader fallout from his decisions. His actions have made an impression at home, too: for the first time in more than two decades of polling on the question, the Pew Research Center recently found that a majority of Americans believe their country largely ignores the interests of others.