Fought between 1979 and 1989, the Soviet-Afghan War provided vital combat experience for Osama bin Laden and his senior lieutenants in al-Qaeda, allowing them to hone their newly acquired skills in guerrilla warfare to later support Islamist insurgencies worldwide. Yet the ruthless al-Qaeda chief’s success depended on the Soviet leadership’s reluctant prolonging of its military occupation out of fear of leaving Afghanistan in hostile hands. As relative latecomers to the ferocious Afghan frontlines, the inexperienced Arab fighters benefitted militarily from the combat training unwittingly provided by their Soviet foes. After skillfully obtaining this command and battle experience by working within the wartime atmosphere, bin Laden channeled al-Qaeda’s efforts in a global jihadi campaign targeting a second superpower and its allies. While allegations of U.S. support for the Arab jihadis have contributed to a popular image of bin Laden and al-Qaeda as C.I.A. creations, the historical facts appear to demonstrate that the combat opportunities provided by the Soviet occupation forces played a far larger role in transforming them into seasoned guerrilla fighters. In contrast to the dozens of previous works on bin Laden and al-Qaeda, this book is the first to focus primarily on the Soviet-Afghan War’s impact on training the Arab fighters from Yemen, Saudi Arabia, and elsewhere, in battle, and preparing them to export their guerrilla war to assist their comrades in their native countries. As a teaching tool that re-examines and clarifies the impact of bin Laden’s wartime actions, this book will be particularly useful to scholars of history and international relations seeking to acquire and spread new knowledge in the classroom and to better understand the origins of al-Qaeda’s deadly skills and martial resilience. It offers an opportunity for today’s decision-makers to learn from history and avoid creating new generations of bin Ladens.