担心又一场中东战争也是奥巴马只愿意对叙利亚采取一次性惩罚性打击的原因，一些国会议员甚至连这一点都反对。
Wariness of another Middle East war has also underpinned Obama’s unwillingness to go beyond a one-time punitive strike on Syria – with some in Congress opposed to even that.