At the height of Islamic State's drive for foot soldiers in 2013 and 2014, typical recruits included the group of Frenchmen who went bar-hopping with their recruiter back home, the recent European convert who now hesitantly describes himself as gay, and two Britons who ordered "The Koran for Dummies" and "Islam for Dummies" from Amazon to prepare for jihad abroad. Their intake process complete, they were grouped in safe houses as a stream of Islamic State imams came in to indoctrinate them, according to court testimony and interviews by The Associated Press.