International Law. A Treatise. Volume 1 (of 2)
 Peace. Second Edition

by L. (Lassa) Oppenheim

"International Law. A Treatise. Volume 1 (of 2)" by L. Oppenheim is a scholarly treatise on the principles and concepts of international law, written in the early 20th century. The work serves as an authoritative reference for students and practitioners alike, examining the foundations, sources, and complexities of the law governing the interactions between sovereign states. The treatise sets the stage for understanding the legal framework that governs international relations. The opening of this volume introduces readers to the fundamental principles of international law, discussing its legal status, the concept of customary and conventional rules, and the necessity of a common consent among states. Oppenheim emphasizes that international law is distinct from municipal law and underscores the sovereign equality of nations, while outlining the challenges posed by the absence of a centralized enforcement authority. The author further explains how these legal norms emerged from mutual interests and interactions among states, establishing a system that facilitates diplomatic relations and the resolution of conflicts between nations.