From the Summary: "June 2014 to December 2017 represented the high tide of radical Islamist (Salafi-jihadist) territorial control under the authority of the Islamic State in Iraq and Syria. Primarily battle-hardened, many fighters remain situated within the various enclaves still controlled by that hybrid terrorist-insurgent entity. This monograph analyzes and provides policy response options for US national security and Army planners concerning the potential for postterritorial caliphate battlefield migration by this still-sizable contingent of Islamic State foreign fighters. The monograph achieves these ends by 1. discussing Islamic State territorial eras and demographics; 2. offering an overview of the initial inflows of these fighters into the territorial caliphate, outflows to the United States, and lateral transfers to new battlefields, as well as mentioning special issues related to Islamic State women and children; 3. highlighting and analyzing the four strategic options available to the Islamic State in its postterritorial caliphate phase; and 4. offering senior US policy makers and planners options for counterbattlefield migration policy responses."
Army War College (U.S.). Strategic Studies Institute