Islamic State relies heavily on the recruitment of foreign fighters. We examine this recruitment from an
organizational perspective. We analyze how the process of recruitment of foreigners shapes the adverse selection
problem affecting the dissident groups that they join. We also examine the different mechanisms used to
maintain the allegiance and compliance of foreigners as opposed to indigenous recruits. More broadly, we
analyze how the recruitment of foreign fighters affects the organization. Foreign fighters and local recruits exhibit
significant differences in recruitment patterns and motivations for joining IS. This could create problems for the
organization. Evidence of such strife, however, is not discernible. Given the information at hand, IS appears to be
effectively managing the mix of foreign and local recruits.
