How the UN has helped ?

A 2005 RAND Corp study found the UN to be successful in two out of three peacekeeping efforts. It compared UN nation-building efforts to those of the United States, and found that seven out of eight UN cases are at peace, as compared with four out of eight US cases at peace.Also in 2005, the Human Security Report documented a decline in the number of wars, genocides and human rights abuses since the end of the Cold War, and presented evidence, albeit circumstantial, that international activism — mostly spearheaded by the UN — has been the main cause of the decline in armed conflict since the end of the Cold War. Situations where the UN has not only acted to keep the peace but also occasionally intervened include the Korean War(1950–1953), and the authorization of intervention in Iraq after the Persian Gulf War in 1990.