Both Roy and Kepel agree that these terrorists are acting out of an adherence to a violent strand of Islam known as Salafi-jihadism
, albeit having adopted it for what they believe are different reasons....
...
Drawing from his discussion with terrorism analyst Marc Sageman, he
argues that jihadists are "using religion to advance a political vision, rather than using politics to advance a religious vision".
....
This of course misses the most obvious point which one is even able to drawn from Hasan's own conclusions: that the answer is both religion and politics.
Today, Isil is fighting to realise a political goal, namely the establishment of God's rule on earth represented by a form of government which draws its laws from the primary texts of Islam. The political message is that Islam, as a religion, is under attack and must be defended and then spread across the globe as the sole form of governance...."
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