Islamist militants based in Pakistan have played a major role in terrorism around the world and pose a significant threat to regional and international security. Although the Pakistan-militant connection has received widespread attention only in recent years, it is not a new phenomenon. Pakistan has, since its inception in the wake of World War II, used Islamist militants to wage jihad in order to compensate for severe political and material weakness. This use of militancy has become so important that it is now a central component of Pakistani grand strategy; supporting jihad is one of the...