The missiles were being prepared even before the two men finished dinner, disrupting the carefully choreographed proceedings. The American attack on Syria on Thursday unraveled China’s well laid plans for a summit meeting that would present President Xi Jinping as a global leader on par with President Trump, at once stealing the spotlight from Mr. Xi and putting him in a difficult position: choosing between condoning the kind of unilateral military action that China has long opposed, or rebuking his host. Read more