One track would channel steps to improve the balance of power on the ground in Syria. This means doing more to help the Kurds and select Sunni tribes, as well as continuing to attack the Islamic State from the air.
与此同时，美国和其他国家应该追求双规政策。一条轨是引导改善叙利亚地面力量平衡的措施。这意味着以更大的力度帮助库尔德人和某些逊尼派部落，并继续从空中打击伊斯兰国。