In Yemen, a largely stagnant battlefield hides an active political scene throughout the country, in which the Saudi-backed government of President Abd Rabboh Mansour Hadi is vying for control of the country against an opposition alliance. To the north, in the capital city of Sanaa, the cooperation between the forces loyal to former President Ali Abdullah Saleh and the Iran-backed Houthi rebels has the potential to unravel. This month, for instance, Saleh reportedly received medical treatment from a Russian team of doctors, which could indicate the extent that Saudi Arabia would be willing to incorporate Saleh in a future political settlement. However, in seeking to curb Iranian influence in the region, Saudi Arabia would likely require that the Saleh loyalist severe their ties with the Houthi rebels. ...