"This monograph describes the qualitative comparative approach, presents findings from the overall analyses, and explains the study's case selection and methodology. It also presents an overview and in-depth assessments of the key approaches, practices, and factors that feature prominentlyin successful COIN operations. A companion volume, Victory Has a Thousand Fathers: Detailed Counterinsurgency Case Studies, includes detailed case histories for each of the COIN campaigns examined in the analyses. The full case data can be downloaded at http://www.rand.org/pubs/monographs/MG964 ."--P. iii