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 Monetary Fund (IMF) : IMF was founded on December 27, 1945. Its tasks and duties include promotion of international cooperation with regard to currency, promotion of trade among countries, stabilization of exchange rates, establishment of multilateral means of settlement for expenditing currency transactions among member countries, and extending cooperation for the elimination of unnecessary or excessive control of foreign exchanges, which impedes the expansion of world trade.