"Ungoverned spaces" are often cited as key threats to national and international security and are increasingly targeted by the international community for external interventions-both armed and otherwise. This book examines exactly when and how these spaces contribute to global insecurity, and it incorporates the many spaces where state authority is contested-from tribal, sectarian, or clan-based governance in such places as Pakistani Waziristan, to areas ruled by persistent insurgencies, such as Colombia, to nonphysical spaces, such as the internet and global finance.