- 1949 - 1967
Series maintained by the Executive Assistant to the Secretary-General, Andrew Cordier, until 1961, then by the Under-Secretary-General for Special Political Affairs, Ralph Bunche, who also served as Acting Mediator for Palestine. Records consist of weekly summary reports from the Chief of Staff of the United Nations Truce Supervision Organization (UNTSO) related to events under his command. Correspondents include Secretaries-General Trygve Lie, Dag Hammarskjold, and U Thant, as well as UNTSO Chiefs-of-Staff William Riley, Vagn Bennike, E.L.M. Burns, Carl C. von Horn, and Odd Bull. Arranged chronologically.