Read the text to fulfil the tasks. The UN, after approval by the Security Council, sends peacekeepers to regions where armed conflict has recently ceased or paused to enforce the terms of peace

The UN, after approval by the Security Council, sends peacekeepers to regions where armed conflict has recently ceased or paused to enforce the terms of peace agreements and to discourage combatants from resuming hostilities. Since the UN does not maintain its own military, peacekeeping forces are voluntarily provided by member states of the UN. The forces, also called the "Blue Helmets", who enforce UN accords are awarded United Nations Medals, which are considered international decorations instead of military decorations. The peacekeeping force as a whole received the Nobel Peace Prize in 1988.

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 due to the division of the world into hostile camps. Following the end of the Cold War, there were renewed calls for the UN to become the agency for achieving world peace, as there are several dozen ongoing conflicts that continue to rage around the globe.

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 opposed to 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 Iraqi invasion of Kuwait in 1990.