This is the first book that explores whether there are any rules in international law applicable to unilateral sanctions and if so, what they are. The book examines both the lawfulness of unilateral sanctions and the limitations within which they should operate. In doing so, it includes an analysis of State practice, the provisions of various international legal instruments dealing with such sanctions and their impact on other areas of international law such as freedom of navigation, aviation and transit, and the principles of international trade, investment, regional economic integration,...