The West’s denial regarding Saudi Arabia is striking: It salutes the theocracy as its ally but pretends not to notice that it is the world’s chief ideological sponsor of Islamist culture. The younger generations of radicals in the so-called Arab world were not born jihadists. They were suckled in the bosom of Fatwa Valley, a kind of Islamist Vatican with a vast industry that produces theologians, religious laws, books, and aggressive editorial policies and media campaigns.

One might counter: Isn’t Saudi Arabia itself a possible target of Daesh? Yes, but to focus on that would be to overlook the strength of the ties between the reigning family and the clergy that accounts for its stability — and also, increasingly, for its precariousness. The Saudi royals are caught in a perfect trap: Weakened by succession laws that encourage turnover, they cling to ancestral ties between king and preacher. The Saudi clergy produces Islamism, which both threatens the country and gives legitimacy to the regime…

Daesh has a mother: the invasion of Iraq. But it also has a father: Saudi Arabia and its religious-industrial complex. Until that point is understood, battles may be won, but the war will be lost. Jihadists will be killed, only to be reborn again in future generations and raised on the same books.