'Deborah Avant has written a sensible corrective to the hype and hyperbole that has accompanied the study of 'mercenaries'. She shows how private military companies are a part of the everyday workings of national military establishments, and provides prescient warnings about the impact of excessive outsourcing in this area. Avant provides an alarming message that over-reliance on private forces undermines the spirit and commitment that make effective national militaries work. In doing so, Avant shows how a public ethic is an integral part of what makes national militaries successful and how this is missing in private military companies.' William S. Reno, Northwestern University