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The development of international law has evolved gradually from customary practices among states to a codified system of rules and principles recognized globally. Rooted in treaties, conventions, judicial decisions, and the practices of nations, it reflects humanity’s effort to create order and justice in international relations. Its principles include the sovereignty and equality of states, the prohibition of the use of force except in self-defense or under United Nations authorization, respect for human rights, and the peaceful settlement of disputes. Over time, international law has expanded beyond regulating state interactions to addressing issues such as environmental protection, humanitarian concerns, and global trade. This evolution demonstrates its dynamic nature, adapting to the changing needs of the international community while maintaining its core objective of fostering peace, cooperation, and fairness among nations.
This lecture is part of POL 406 INTERNATIONAL LAW AND ORGANISATION in the Political Science department. The course has 36 recorded lectures across 12 series, all free to watch. Read or download the POL 406 lecture note to study alongside the video.