This paper addresses the conceptual capabilities and limitations of air power in COIN in order to illuminate how the Air Force can leverage the distinct asymmetric advantage that air power presents across the spectrum of conflict. This asymmetry is founded upon a clear U.S. superiority in air power capabilities combined with the unique flexibility inherent in air power. An understanding of air power's efficacy in COIN, measured against conventional requirements and capabilities, will inform decisions on appropriate force structure and employment.