U.N. envoy struggles to start Yemen talks, truce teeters on collapse

By Mohammed Ghobari KUWAIT (Reuters) - The U.N. envoy to Yemen sought on Tuesday to persuade Yemen's Houthi group to send representatives to peace talks in Kuwait as a shaky truce declared this month teetered near collapse, delegates said. An advisor to the U.N. delegation in Kuwait said the Houthis had been "very positive" until two days ago and were agreed with envoy Ismail Ould Cheikh Ahmed on almost everything. "They have since completely changed and this has caused a shock (to Ould Cheikh A