Lately we’re being warned that a future source of Islamic State attacks will be its foreign fighters in Syria and Iraq, who will return to their countries of origin and wreak havoc. In a cleverly titled National Interest article, ISIS Is Here: Return of the Jihadi, Bruce Hoffman writes:
The vast pool of recruits drawn to Syria affords ISIS and any of the other militant Islamist groups active there a surfeit of potential terrorists from which to cherry-pick and potentially dispatch back home to carry out terrorist attacks.
… One does not have to speculate terribly much to see the potential threat from ISIS to the West given its vast cadre of foreign fighters native to, or previously resident in, those countries. This unprecedented pool of foreign recruits suggests that ISIS would certainly have the capability to undertake more attacks modeled on the simultaneous assaults and running gun battles that occurred in Mumbai in November 2008 and Paris almost exactly seven years later.