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".
Croatian Republic of Herzeg-Bosnia
On 21 July 1992, the Agreement on Friendship and Cooperation between Bosnia and Herzegovina and Croatia was signed by Alija Izetbegović and Franjo Tuđman, establishing a military cooperation between Bosnian and Croatian forces. Although it was often not harmonious, it resulted in the gradual stabilisation of the defence in Bosnia and Herzegovina. Weapons for the Bosnian army were sent through Croatia despite the arms embargo. At a session held on 6 August, the Bosnian Presidency accepted HVO as an integral part of the Bosnian armed forces.