Nuclear Proliferation: the Behaviour of Big Powers and its Impact of International Security

The end of the Cold War brought new challenges in regard to nuclear proliferation. The stability which was the outcome of bipolar system declined and the Soviet Union’s control and supervision on nuclear installations also disappeared. As a result the possibility of access of government and non-government actors to nuclear material and technology for producing nuclear arms was strengthened. The nuclear countries and at] the head of them the United States believe that the international security atmosphere and the danger of weapons of mass destruction proliferation in world and regional dimension are among the main threats to international system which its repercussion affects all the countries. For this reason creation of a strong supervisory regime for limiting the expansion and proliferation of nuclear weapon is necessary. Besides creation of a supervisory regime on nuclear non-proliferation treaty, the nuclear countries in their meeting of IAEA board of governors on December 2010 agreed on the establishment of nuclear fuel bank for supervising the nuclear fuel supply. The initiatives and executive suggestions of some of the countries and related organizations are among the efforts by nuclear powers to limit nuclear proliferation.