This volume addresses themes of enduring importance for US national security, such as the role of US forces in 'nation building, ' challenges of interagency coordination, innovation during wartime, and the larger strategic issues of the need for socio-cultural knowledge in American foreign policy. This book gives the reader insight into the growth and development of HTS, the largest single investment ever made by the Department of Defense in applied social science. This book also conveys what the experience of working on a small team in a combat zone was really like, both good and bad