Donald Trump has again claimed that an end to his war with Iran is within reach. But, not for the first time, the notion has been rapidly debunked.
Indeed, the rapid advance of Houthi rebel forces, so that they can tighten their grip on oil supplies moving through the Red Sea, is evidence that the conflict is spreading and intensifying. The group, closely linked to Tehran, has swept through southern Yemen. This is drawing Saudi Arabia into renewing its long and merciless battle with the Houthis that ended, uneasily, in stalemate a few years ago.