Ever since the end of the Second World War, Japanese defense and security law has been shaped by the tension between the "peace article" of the Constitution and the political expectations of an operational force. The result is a complex network of statutory guidelines for the activities of the Japanese Self-Defense Forces. The book analyzes these regulations, with a focus on the particularly strictly regulated deployments abroad. Based on a comprehensive, structured presentation of the legal framework and of its implementation in practice, it offers a critical analysis of Japanese defense and security law, putting an emphasis on the criteria of foreseeability and accountability.