This book is about pre-emptive attack and securing the peace. Questions of legal extraterritoriality feature prominently in international investment and WTO trade law, international human rights law, state responsibility, and a large number of other areas. Nevertheless, many accounts are yet to grapple with its historical practice and its ramifications for the present and future. This book shares the memoirs of a Barrister in the Far East, Duncan McNeill, who for thirty-five years, from the beginning of 1891, practised in Extra-territorial Courts. The book will be of considerable interest to legal practitioners, legal scholars, historians, and those working in diplomacy and international relations in China, Hong Kong and Japan.