Featuring essays by some of the world’s leading experts on unconventional conflict, both scholars and practitioners, the book discusses how modern regular armed forces react, and should react, to irregular warfare. The volume is divided into three main sections: is the first comprehensive textbook on counterinsurgency, and will be essential reading for all students of small wars, counterinsurgency and counterterrorism, strategic studies and security studies, both in graduate and undergraduate courses as well as in professional military schools.