Abstract
The United Nations (UN) is an international organization created in 1945 after World War II. Currently it is composed of 192 members. Because of the horrors of the two world wars, the aim of the UN is first of all to establish a lasting peace in the world. During the Cold War, the role of the UN was limited in antagonisms between the USA and the USSR. Remember, Khrushchev boycotted the UN meetings by putting his shoes on the table. The end of the Cold War permitted the UN to take back its world-wide role. However, the UN not always had successes, that is why nowadays, the international community doubts its effectiveness.
