This book examines Prussia's response to Napoleon and Napoleonic expansionism in the years before the crushing defeats of Auerstadt and Jena, a period of German history as untypical as it was dramatic. Events are analyzed at the level of high politics, foreign policy and the reform of the executive. The book also addresses matters of general theoretical concern such as high politics, geopolitics and the "primacy of foreign policy". In doing so it goes beyond anything that has been attempted before, and presents a comprehensive and nuanced picture of Prussia before 1806.