This is a comprehensive yet concise and accessible introduction to the history, role, activities and future challenges facing NATO. Assuming no prior knowledge of the subject, author Jennifer Medcalf guides listeners through the complex structure of this organisation. Despite predictions of its imminent demise, NATO is in fact more prominent than ever in international affairs, and this introduction will prove essential not only for the general listener, but also for the growing numbers of students on International Relations courses, and for service personnel in NATO and elsewhere.