Clarifies the content, character, and legal significance of the principle of effectiveness in the international law of territory~Provides a thorough analysis of the case law on territorial questions, including important recent decisions~Offers a unique perspective on the evolution of international law, both in terms of its normative content and its means of application, by focusing on territory ~Features a clear analytical framework to assist scholars and practitioners in understanding the body of rules and principles which are applicable in modern territorial disputes, covering the significante changes which have taken place in the international law of territory ~Includes scholarly and diplomatic materials from Latin, French, German, Spanish, and Italian