In Afghanistan, the U.S. military faces one of the most complicated and difficult supply chains in the history of warfare. The task of feeding, fuelling, and arming American troops at over 200 forward operating bases and combat outposts sprinkled across a difficult and hostile terrain with only minimal road infrastructure is nothing short of herculean. In order to accomplish this mission, the Department of Defense employs a hitherto unprecedented logistics model: responsibility for the supply chain is almost entirely outsourced to local truckers and Afghan private security providers. The principal contract supporting the U.S. supply chain in Afghanistan is called the Host Nation Trucking (HNT), a $2.16 billion contract split among eight Afghan, American, and Middle Eastern companies. This book explores the potential strategic consequences of supply chain contracting in Afghanistan.