This book deals with expropriation and other measures affecting property rights as set out in the awards of the Iran-U.S. Claims Tribunal, and thus examines the relation between general international law and the lex specialis, viz., the provisions of the Algiers Declarations and the Treaty of Amity between the Governments of Iran and the United States. It studies what rights have been considered as property rights capable of being independently expropriated or affected by other measures, and what rights have not been so qualified, although they might have been considered as forming an element of valuation. Furthermore, the liability and attributability issues are discussed, as are the methods of compensation and of valuation.