1. The UNO has succeeded in promoting international peace and security e.g. resolution of the Congo crisis.
2. The UNO has helped immensely in financing development projects in developing countries.
3. The UNO has also succeeded in settling international disputes through peaceful means.
4. The UNO has helped in alleviating diseases in most of the epidemic areas of the world.
5. The UNO has also helped in granting loans to member states for development through their specialized agency called World Bank.
6. The UNO has also succeeded in making a universal declaration of Human rights globally as adopted on December 10th, 1948.
7. Its peacekeeping operations in some crisis-ridden areas have helped to check the outbreak of war, which would have escalated into a world war.