After the failure of League of Nations, the necessity of an international organization of wider character was felt. This need was fulfilled with the creation of UN in 1945. It had the responsibility to maintain international peace and promote cooperation in solving international economic, social and humanitarian problems.
The UN has completed fifty seven years and apparently seems to be more assertive, confident and visible, both in its approach and actions. The recent manifestations of this confidence have been its interventions in Kuwait, Somalia, Angola, Rwanda, Zaire and Afghanistan
Apart from few highlights the UN has always been in question for its power to handle the disturbing issues around the world. The founders of the UN had envisaged that the organization would act to prevent conflicts between nations and make future wars impossible, however the outbreak of the Cold War made peacekeeping agreements extremely difficult because of the division of the world into hostile camps.
The UN has also drawn criticism for perceived failures. In many cases, member states have shown reluctance to achieve or enforce Security Council resolutions, an issue that stems from the UN's intergovernmental nature—seen by some as simply an association of 192 member states who must reach consensus, not an independent organization
Looking at the past it can be said that UN has failed in serious issues but nevertheless it has made progress toward world cooperation and has adapted to changing circumstances that were not dreamed of by its