The “Islamic State” Crisis and U.S. Policy. Congressional Research Service, Library of Congress. Kenneth Katzman et al. September 10, 2014.
The Islamic State is a transnational Sunni Islamist insurgent and terrorist group that has expanded its control over areas of northwestern Iraq and northeastern Syria since 2013, threatening the security of both countries and drawing increased attention from the international community. There is debate over the degree to which the Islamic State organization might represent a direct terrorist threat to the U.S. homeland or to U.S. facilities and personnel in the region.
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