A few days ago, former Yemeni President Ali Abdullah Saleh was killed amid fighting between his supporters and their former allies, the Houthi rebel movement. Both are fighting current the president, Abdrabbuh Mansour Hadi who is backed by a regional coalition led by the Kingdom of Saudi Arabia with help with the support of Western allies. Today we ask what the balance of forces is in Yemen, and the challenges to ending this devastating civil war.