To protect peace and harmony among the states in the world is the main objective of the United Nations. With reference to the Charter, the members are responsible for keeping harmony and to settle conflicts and disputes against any sort of threat or using force. Over the years, the UN has played important role to negotiate for peace with both the Presidents of Russia and-Ukraine. The world conscience is to some extent has been successful to prevent both Israel and Hamas in the middle East.

 In 1988, an UN-sponsored peace settlement ended the Iran-Iraq war, and the following year UN- sponsored negotiations led to the withdrawal of Soviet troops from Afghanistan. In the 1990s, the UN was instrumental in restoring sovereignty to Kuwait and played a major role in ending civil wars in Cambodia, El Salvador, Guatemala and Mozambique, restoring the democratically elected government in Haiti, and resolving or containing conflict in various other countries. When, in September 1999, a campaign of violence forced some 200,000 East Timorese to flee their homes following a vote on self – determination, the UN authorized the dispatch of an international security force, which helped restore order.

In October, the Council established a UN Transitional Administration which, with the protection of the multinational force, began overseeing the territory's transition to independence. And when terrorists attacked the United States on 11 September, 2001, the Security Council acted quickly – adopting a wide-ranging resolution which obligates states to ensure that any person who participates in financing, planning, preparing, perpetrating or supporting terrorist acts is brought to justice, as well as to establish such acts as serious criminal offences under domestic law.
 

• Disarmament:

  Halting the spread of arms and ammunitions while eventually eliminating all weapons of mass destruction are major goals of the United Nations. The UN has been an ongoing forum for disarmament negotiations, making recommendations and initiating studies. It supports multilateral negotiations in the Conference on Disarmament and in other international bodies.
   

• Peace-Making:

  UN peace-making efforts bring hostile parties to agreement through diplomatic means. The Security Council, in its efforts to maintain international peace and security, may recommend ways to avoid conflict or restore secure peace – through negotiation. The Secretary-General plays an important role in peace-making. The Secretary-General may bring to the attention of the Security Council matters that appear to threaten international peace and security, use good offices to carry out mediation, or exercise quiet diplomacy behind the scenes – either personally or through special envoys. The Secretary-General also undertakes preventive diplomacy aimed at resolving disputes before they escalate.
   

• Peace-Building:

  The UN is increasingly raising activities that address the underlying causes of conflict. Development assistance is a key element of peace-building. In cooperation with UN agencies, donor countries, host governments, and NGOs, it helps human rights efforts in countries struggling to deal with the aftermath of conflict. At the same time, it helps these countries rebuild administrative, health, educational, and other services disrupted by war.
   

• Peacekeeping:

  The Security Council sets up UN peacekeeping missions and defines their scope and mandate in its efforts to maintain peace and international security. Most operations involve military duties, such as observing ceasefires or establishing a buffer zone while negotiations seek a long-term solution. Others may require civilian police or other personnel to help organize elections or monitor human rights. Operations have also been deployed to monitor peace agreements in cooperation with the peacekeeping forces of regional organizations. Peacekeeping operations may last for a few months or continue for many years.

Conclusion:
To conclude it may mention that the UN as a world body has been doing its sincere duties assigned to it despite of the intervention of the world powers like America, Russia, China and of course India. We are hopeful for the future so long as the UN is concerned and sure that no further Nuremberg shall again take place.

Also Read:

• United Nations And International Security