Counterinsurgency (COIN) continues to be a controversial subject among military leaders. Critics argue that the wars in Iraq and Afghanistan have made the U.S. military, particularly the Army, "COIN-centric." They maintain that equipping U.S. forces to combat insurgency has eroded their conventional war fighting capabilities. Those committed to preserving and even enhancing COIN capabilities, on the other hand, insist that doing so need not compromise the ability of the military to perform other tasks. They also point out that the likelihood of even a mid-level conventional war remains low while the probability of unconventional engagements is high. This monograph reviews the COIN debate, analyzes current force structure, and concludes that contrary to the more extreme positions taken by critics and proponents, the U.S. military has achieved a healthy balance between COIN and other capabilities.