There are signs that the Astana talks on the Syrian war — which began in 2017 and are sponsored by Moscow, Ankara and Tehran — have little prospect of making progress going forward.

The coming crisis of American power that is sure to follow the November election will be unique in U.S. history. Competing with China, Russia and whatever other major rivals may emerge will be less about aircraft carriers, fighter jets, nuclear submarines and stealth bombers than ever before, and more about …

Reciprocity has become the watchword for the Trump administration’s increasingly confrontational approach to China, from imposing limits on the movement of Chinese diplomats and journalists within the U.S., to banning Chinese-owned social media and messaging platforms TikTok and WeChat. The immediate goal is to impose costs for Beijing’s similar restrictions …