Secretriat :
It is an important part of UNO. It is the headquarters of UN which administers and coordinates programs and policies of the other organs and agencies of UN. In secretriat international staff is appointed to provide services to different UN organs and representatives of member countries. The number of staff is about 50,000 which is appointed at headquarters arid other places. The selection in secretriat shows the representation of each member country. The head of the secretriat is the secretary general, who is elected for five years by general assembly. UN charter, important of powers has been given to secretary general. He brings to the notice of security council any issue that can cause danger to international peace and security. Secretary general can play the role of a mediator between countries with the permission and authority of general assembly.
