International law is a discipline under international relations. Examines the legal dimension of international relations in a scientific discipline. It is also called interstate law. International law is the set of rules that regulate the relations between the actors that make up the international community. States feel obliged to fulfill collectively; it is necessary to establish international organizations and organizations and to regulate their relations with each other, with states, and with individuals; all the rules of law which determine the rights and duties of actors and persons other than the state that concerns the international community. The emergence of international law and its application in relations between states took place in the fifteenth and sixteenth centuries when sovereign national states emerged. The main feature that distinguishes national states from the previous state system is that the supreme authority within the country falls into the hands of a central government or ruler. Until then, the ruler shared his powers with the feudal lords and the church. Along with the emergence of states with certain borders in the twelfth century, sovereign states were mentioned which had no other authority on them.
However, it is necessary to go back to the period of the Roman Empire in case of the development of the rules of international law. In this universal empire, ius gentium, which regulates the relations between Rome and foreigners, became the first messenger of modern international law. Although most modern international law rules are rooted in Roman law, this law has very different aspects from international law. Therefore, the emergence of modern international law has been accompanied by the emergence of sovereign state system. An important part of the first rules of international law was acquired and settled by the Treaty of Westphalia in 1648, which ended the thirty-year war with religious motives.1 International law refers to the norms that regulate the relations of persons of international law.
• International Organizations
What regulates international law?
International law regulates and only regulates the smooth and trouble-free functioning of the modern interstate system, which emerged in the 16th century and still continues today. It has no other functions. It is necessary to emphasize that it is the most important structure within the system because it provides the international system with what it needs. The international law made by the states within that system gives no meaning to it, except to expect grace or hope for justice on behalf of the “Humanity en that it is said to defend, whether it is right or left, and pointing to liberalism, ie ideology itself.