In one of the most underreported happenings in the Persian Gulf conflict, Yemen’s internationally recognized government and allied militias have inflicted a series of ground setbacks on Iran-backed Houthi forces over the past month. These defeats are reversing parts of a late-summer Houthi push toward the Red Sea undertaken as part of the Iranian strategy of widening its conflict with the U.S. The Yemeni government is sufficiently confident in the new fronts that they now describe this as the start of a campaign to take the Houthi capital of Sanaa. The Iranian-backed Houthis have been Iran's key ace-in-the-hole for years....