That’s because he has no solution. There is no such thing as “Syria” as a coherent nation, which he alludes to in his identification of, for instance, Aleppo and Damascus as ancient rivals. There never has been peace among these people and never will. The idea that it is the fault of France, Britain, Russia, U.S. or whoever, anyone but *them*, is why some people, no matter how much they think about the subject, fail to understand how people from the same (nominal) country can kill each other. The author wants to exculpate them by blaming colonialism. That’s typical, but no more insightful than usual.