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Terrorist groups like ISIS and al-Qaeda have for years relied on foreign recruits and lone-wolf supporters to bolster their ranks. Jamal Ahjjaj, an imam at As-Soennah Mosque in The Hague, told the Washington Post that converts are “the most vulnerable because they do not yet fully understand Islam.” The imam noted that “sometimes there are people — the wrong people — waiting outside the mosque to greet them.”

CEP’s Extremist Converts resource has identified 131 American, Canadian, Australian, and European converts to Islam from diverse backgrounds who have become or attempted to become extremist propagandists or recruiters (13), foreign fighters (53), or domestic terrorists (74). Analysis of the profiles finds that:

  • At least 79 (60 percent) were 25 years old or younger at the age of conversion
  • At least 37 (28 percent) pledged allegiance to, or allegedly acted on behalf of, ISIS
  • At least 27 (21 percent) reportedly had prior criminal records, while at least 11 (8 percent) reportedly converted to Islam while in prison 
  • At least 24 (18 percent) were influenced indirectly or directly by deceased al-Qaeda propagandist Anwar al-Awlaki
  • At least 23 (18 percent) allied themselves with al-Qaeda or its affiliates
  • At least 18 (14 percent) had a history of drug use 
  • At least 17 (13 percent) served or aspired to serve in their countries’ military 
  • At least 14 (11 percent) had disciplinary problems in high school or dropped out before graduating
U.S. & Canadian Extremist Converts European & Australian Extremist Converts