War, Anarchism, Chaos or whatever you call; it causes national and international irregularity, normlesshess, hopelessness, unhappiness. To end such a situation, national or international agreements, contracts, arrangements are made. It is social order has been suggested for ending the chaos at the national level by modern period contractors and philosophers such as Machiavelli, Rousseau and Locke. The point should be considered here; Philosophers, to maintain law and order , have developed a common argument which have been participated by majority of the society in the convention. Organizations which are considered to be realized at the international level, are also need to be expected to provide a heterogeneous social structure based on common interests and values, with the participation of all factors or majority. At this point it becomes important whether the League of Nations and the United Nations can be evaluated or not as a international society without falling into an homogeneous structure. Hereby, the aim of this study is to find out whether the League of Nations has been established as a system to provide peace and order after First World War and United Nations has been established under leadership of major states provide the peace and trust in the world after Second World War, international community or not. By this perspective, primarily, it has been mentioned about the process of establishment League of Nation and United Nations. Secondly, English School and the theory of constructivism have been studied. Lastly, through the English School League of Nations and with the key terms of the theory of constructivism. United Nations has been tried to be discussed in the context of international community. In this study, multiple methods such as historical sociology, content analysis and comparative analysis have been used.
Keywords: International Society, Constructivism, English School, United Nations, League of Nations