International organization means a group of states or entities from several states, institutionalized and based on agreements between them to cooperate to achieve common objectives and interests. There are a large number of international organizations of regional, continental and global character. The founders of the United Nations and the authors of the UN Charter started from the urgent need of the world to ensure lasting peace and cooperation in the world after the end of World War II. The UN thought of an international organization with general competencies, capable of maintaining international peace and security. The UN, both geographically and in terms of the variety of problems it has undertaken, is an organization in the fullest sense of the word with a global or universal reach. Over a period of several decades, the debate over the reform of the UN and the UN Security Council has taken an important place. UN reform will be difficult, complex and multidimensional, to adapt to the challenges facing the world today in general and peace and security in particular. [ABSTRACT FROM AUTHOR]