During the period of April through June, 1945, delegates from 50 nations gathered in San Francisco and adopted the Charter of the U.N. Indeed, the U.N., which was officially inaugurated on October 24 the same year as the largest international organization in history, has contributed a great deal to the promotion of world peace and welfare of mankind. A total of 127 countries from throughout the world are affiliated with the U.N. as its members.

International Telecommunication Union (ITU): Established on May 17, 1865, ITU is one of the oldest international organizations, which is dedicated to the enhancement and promotion of international cooperation in the fields of broadcasting, telephone services and telecommunications through the realization of prompt exchange of information among world nations. It is also trying with might and main to enable all mankind of the world to receive maximum benefits and convenience through the improvement of equipment and facilities and by raising efficiency in the telecommunications work.