The United Nations Border Relief Operation (UNBRO) was a donor-nation funded relief effort for Cambodian refugees and others affected by years of warfare along the Thai-Cambodian border. It functioned from 1982 until 2001. Establishment In January 1979, following the ouster of the Khmer Rouge from power by invading Vietnamese forces, hundreds of thousands of Cambodians sought food and shelter along the Thai-Cambodian border, triggering calls for international relief efforts. Initially a consortium of international agencies known as the "Joint Mission" and consisting of UNICEF, the ICRC, UNHCR, and the WFP took responsibility for food distribution, health care, camp construction and sanitation along with considerable support from the Royal Thai Government. However it soon became clear that humanitarian aid provided at camps such as Sa Kaeo would permit the Khmer Rouge to recover from their near-defeat at the hands of the Vietnamese, with a protracted civil war as the likely result. Because of this and ongoing conflicts with other aid agencies, ICRC and then UNICEF reduced their role in the management of refugee relief services on the border. UNHCR worked only with residents of holding centers such as Khao-I-Dang and Phanat Nikhom and provided no services in the border camps. In January 1982, UNBRO was established to coordinate border relief operations under the direction of the Special Representative of the Secretary General of the United Nations for Coordination of Cambodian Humanitarian Assistance Programs (OSRSG), then headed by Sir Robert Jackson. Known originally as "WFP-UNBRO", its first director was the UNDP's Resident Coordinator in Bangkok, Winston R. Prattley, who also served as WFP representative. Because the operation had no staff at the beginning, UNICEF agreed to a six-month loan of its Kampuchean Emergency Unit until UNBRO could hire its own people. UNBRO was a temporary agency, created by the UN General Assembly to address a specific crisis. It had a mandate but no charter or independent governing council. Nor did it have an independent budget; it had to rely on the support of donor countries from the General Assembly, solicited through pledges at donor meetings twice a year. UNBRO received its monetary and in-kind donations primarily from the United States, the European Commission, Japan, France, the United Kingdom, Australia and Canada. Scope of operations Guiding principles UNBRO operated on the basis of five working principles, laid out in an internal memo on policy guidelines dated July 1982. These principles were revised and