Despite its matchless impact and age-old functioning in the establishment of peace all through the history, the theory of natural law remains neglected among the popular theories at the international level. Domination of legal positivism, and schools of its like, has always blocked any natural healing to the ailing condition of the contemporary international system, hence some artificial and feigned methods have always been presented for this purpose. Given the fact that natural law lays the foundation for the attainment of natural justice, the present article is based on the premise that “natural justice serves as an enduring basis for the establishment of sustainable peace”. To this end, emphasis is put on the key issues of justice, security, and peace, which make up the three angles of a triangle formed around rules of natural law and human nature.
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