This book examines the roles played by China and Europe in the domain of international security in the 21st century. Bringing together Chinese and European expertise on the Sino-European Security relationship , this book positions Europe - both the EU and the major national actors - and China in a global security context. It offers not merely an elaboration of the theme of bilateral security relations, but also introduces a wider view on Europe and China as global security actors. The chapters cover four main themes: the perceptions of and actual relations between Europe and China as security actors; relations of China and Europe with third parties such as the US, Russia, and Iran; Europe and China as actors in multilateral security approaches; Europe and China as (potential) security actors in each other's technological domain or region. Given the increasingly prominent roles that both China and Europe play in international security as permanent members of the UN Security Council (in the European case, through the informal and partial representation of the UK and France), through their extensive global economic interests, and their important relations with the USA, this book provides a timely examination of the current state and future developments in the Sino-European relationship. This book will be of much interest to students of international security, Chinese politics, EU studies and IR in general.