This week on Babel, Jon talks with Peter Salisbury, the International Crisis Group's senior analyst for Yemen with over a decade of experience working on the country. They discuss who's fighting in Yemen, what's at stake in the ongoing battle over Marib, and why the international community needs to broaden its mediation efforts to end the Yemeni conflict. Then, Will Todman, Danny Sharp, and Jon discuss what role the United States should play in Yemen and how the country fits into broader U.S. strategy in the Middle East.