I'm sure the creation and support of Israel played a role too. Why do they hate the western powers, or more broadly, western influence? What drives so many people to join terrorist organizations? They're different from the rebels who fought the governments of Assad and other MENA nations.France occupied Syria in the early 1920s, right after the Turks (Ottoman Empire). They both sucked.
Netanyahu is happy about this civil war. They're fighting each other instead of their common enemy. Probably asking the U.S. to only fight ISIS enough to keep them balanced with the other combatants.
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