Arbitration Commission of the Peace Conference on Yugoslavia
On 20 November 1991 Lord Carrington asked: "Can the internal boundaries between Croatia and Serbia and between Bosnia and Herzegovina and Serbia be regarded as frontiers in terms of public international law?" Applying the principle of "uti possidetis juris", the commission concluded on 11 January 1992, "The boundaries between Croatia and Serbia, between Bosnia and Herzegovina and Serbia, and possibly other adjacent independent states may not be altered except by agreement freely arrived at... Except where otherwise agreed, the former boundaries become frontiers protected by international law".
United Nations Confidence Restoration Operation in Croatia
The UNCRO mission was ended by UNSC Resolution 1025, passed on 30 November 1995. The resolution was passed in the wake of the Erdut Agreement between Croatia and representatives of Serbs in Sector East. It defined mechanisms for peaceful restoration of the region to Croatian control and established an interim period ending on 15 January 1996, when authority was to be transferred from UNCRO to a new transitional force to be deployed to the area. When the interim period expired, the UNSC adopted resolutions 1037 and 1038, which established the United Nations Transitional Administration for Eastern Slavonia, Baranja and Western Sirmium in the former Sector East and the United Nations Mission of Observers in Prevlaka. Commencement of the two new missions coincided with NATO's arrival in Bosnia and Herzegovina to enforce the Dayton Accords.