War in Yemen is becoming increasingly intolerable for almost all the players involved, but still there is no sign of a negotiated way out of the conflict, making a de facto partition of the country a possibility.

The current phase of a long-running war in Yemen has endured since September 2015 when Houthi rebels ousted President ‘Abd Rabbu Mansur Hadi from the capital San’a, and it intensified in March when a Saudi-led alliance began a brutal bombing campaign in the country....