Additional U.S. Ground Troops to Counter the Islamic the Islamic State? Five Questions. Cogressional Research Service, Library of Congress. Kathleen J. McInnis and Andrew Feickert. February 17, 2016.
Operation Inherent Resolve (OIR) – the military campaign to counter the Islamic State (IS) – has three primary components: coordinated air strikes, training and equipping local security forces, and targeted special operations based out of northern Iraq. Perceived setbacks in OIR have led some observers to maintain that inserting significant numbers of additional U.S. and/or coalition ground forces is becoming necessary. Proposals include, but are not limited to, the introduction of additional ground forces to secure territory once it has been taken back from the Islamic State, and the introduction of additional trainers for local security forces. However, there are no clear-cut answers to determining the suitability, size, and mission profile of the ground elements of any military campaign; determining the disposition of military forces is in many ways as much an art as it is a science.
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