What is the administrative arm of the United Nations?

The administrative arm of the United Nations is the Secretariat. It is responsible for carrying out the day-to-day work of the UN, implementing the decisions of the General Assembly, the Security Council, and other UN bodies. The Secretariat is headed by the Secretary-General, who serves as the chief administrative officer and spokesperson for the organization. The Secretariat oversees various programs, agencies, and initiatives that address global issues such as peacekeeping, humanitarian assistance, and sustainable development.