United Nations Temporary Executive Authority

The United Nations Temporary Executive Authority (UNTEA) was established on 1 October 1962 in accord with Article two of the New York Agreement to administer the former Dutch colony of West New Guinea until it was handed over to Indonesia on 1 May 1963. This was the first time in its history that the United Nations assumed direct administrative responsibility for a territory, as opposed to monitoring or supervising.

Source: Wikipedia — United Nations Temporary Executive Authority (CC BY-SA 4.0)