The United States has about 5,000 troops in Iraq leading the fight against ISIS. There are also about 800 U.S. troops fighting ISIS in Syria. Meanwhile, about 14,000 U.S. troops are in Afghanistan helping Afghan forces fight the Taliban and conducting counterterrorism operations against groups such as ISIS.

Outside of combat zones, the United States has also deployed about 14,000 more troops throughout the Middle East since the summer in an effort to deter Iran.