International negotiations to reach a political settlement in Syria have resumed, although serious challenges remain to reaching a political settlement. The talks follow two weeks of a “cessation of hostilities” in which the Russian air campaign in Syria decreased notably, though it did not entirely cease.ⁱ Putin announced that he would withdraw some airframes from Syria on March 15, incentivizing both Assad and the opposition to engage in Geneva.ⁱⁱ Major opposition demands such as the removal of Syrian President Bashar al Assad from office have not been met, however, and Syrian regime officials have not conceded that there should be...