This volume of essays addresses some of the most significant issues of contemporary international law. It particularly focuses on questions relating to international humanitarian law, the law of the sea, human rights, the use of force, international environmental law, and the settlement of international disputes. Recent developments in some other issues of international law such as State immunity and State responsibility are also dealt with. The Work contains a number of articles in French and is offered as a tribute to the prominent Iranian Professor of International Law, Djamchid Momtaz, on the occasion of his 75th birthday.