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Fueling the Islamic State's Engine

Our basic understanding of the Islamic State’s ambitions, and its justifications of those ambitions, remains muddled. “Remaining and expanding” and “a caliphate on the Prophet methodology” are its bumper sticker slogans, but these do not answer the questions of why the group uses ultraviolence, why its narrative is so closely tied to what happens in Syria, why it targets Shiites, and why its adherents destroy tombs.

Illustration through analogy is often the best tool for explanation. Imagine the Islamic State as a vehicle. The fuel that makes its engine run is a theological tradition known as Salafism. However, for the entire vehicle to actually reach its destination, there are many other components that must all work together – a capable driver, functioning parts, a paved road that it shares with other cars, and even suitable weather.

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