The expansion of Islamic extremism is more a product of existing tensions among regional and international actors rather than the main driver of the current instability in the Middle East. This is the sobering conclusion reached by the International Crisis Group.
This is a particular interesting excerpt:
“But if roots are complex, the catalyst is clear enough. The descent of most of the 2011 Arab revolutions into chaos has opened enormous opportunity for extremists. Movements have gathered force as crises have festered and evolved, as money, weapons and fighters flow in, as violence escalates. Mounting enmity between states means regional powers worry less about extremists than about traditional rivals, leverage the fight against IS against other enemies or quietly indulge jihadists as proxies. Especially in the Middle East, jihadists’ expansion is more a product of instability than its primary driver; is due more to radicalisation during crises than beforehand; and owes more to fighting between their enemies than to their own strengths. Rarely can such a movement gather force or seize territory outside a war zone or collapsed state. Geopolitics hinders a coherent response. The starting point should be to dial back the Saudi-Iranian rivalry that drives Sunni and Shia extremism, deepens crises across the region and is among the gravest threats to international peace and security today. Easing other tensions — between Turkey and Kurdish militants, for example, Turkey and Russia, conservative Arab regimes and the Muslim Brotherhood, Pakistan and India, even Russia and the West — is also essential. In Libya, Syria and Yemen, tackling jihadists requires forging new orders attractive enough to deplete their ranks and unite other forces. Of course, none of this is easy. But redoubling efforts to narrow other fault lines would be wiser than papering them over in an illusion of consensus against ‘violent extremism’.”
The rest of the report can be read here