The ending of the Cold War opened a new debate across the Pacific about the meaning of security and the new regional multilateral institutions that were beginning to emerge.The first edition of the "The Asia-Pacific Security Lexicon", published in 2002, identified and defined the key concepts and ideas central to security discourse in the region.This second edition updates all of the entries and examines the origins and meanings of some of the new terms in common usage in a different historical setting, among them "terrorism", "pre-emption", "preventive war", "a la carte multilateralism",...