Records consist of cables, correspondence, reports, agreements, photographs, and miscellaneous other documents primarily from the files of Ralph J. Bunche (Acting Mediator) and of the Headquarters-Advance Command Post in Haifa. These concern armistice negotiations, complaints and investigations, and other matters relating to the Mediator's work in Palestine. Headquarters officials whose files are represented include Colonel Thor Bonde, General Aage Lundstrom, General William E. Riley, the Central Truce Supervision Board, Special Truce Investigation Team, the Deputy Chief of Staff, Political Advisor to the Chief of Staff, Legal Advisor to the Chief of Staff H. Courtney Kingstone, and senior United Nations Military Observers. Also included are the same types of documents from the files of Henry Vigier, who was Personal Deputy of the Acting Mediator and Principal Secretary; representatives in Tel Aviv; J.J. Cebe-Habersky, who was Representative of the Mediator in Syria and Lebanon in Beirut; Pable de Azcarate, who was Representative of the Mediator in Cairo; and the Disaster Relief Project in Beirut, Lebanon, and Amman, Jordan. Of note are some reports of Count Folke Bernadotte in the files of Pable de Azcarate, During the August 1948, Riley was sent to Middle East and was appointed Commander of the United Nations Truce Supervision Organization (UNTSO). In this capacity, he served as Senior US observer in Palestine, who was in charge of co-ordination of assistance and inspecting of US observers under mediator Folke Bernadotte ., These concern armistice negotiations, complaints and investigations, and other matters relating to the Mediator's work in Palestine..