is thus threatening peace and security in the region. D. BREAKDOWN OF THE NEGOTIATIONS AND COMPLAINT OF CHAD AGAINST LIBYA As shown above, the Libyan delegation has consis­ tently refused to discuss frankly the substance of the problem, namely, the occupation ofTibesti. At various meetings, it has sought to minimize the frontier prop­ lem and has always confined itself to the idea of "co­ operation .. with Chad. The positions of the two parties have always, therefore, been irreconcilable. Chad decided to place the question before the four­ teenth Assembly of Heads of State and Government of the Organization of African Unity, held at Libreville from 23 June to 3 July 1977. On the initiative of EI-Hadj Oumar Bongo, President of the Gabonese Republic, the current acting President of OA U, an ad hoe committee of six members, namely, Algeria, Gabon, Mozambique, Nigeria, Sene­ gal and the United Republic of Cameroon, was established to seek ways and means of solving this problem. The Ad Hoe Committee, meeting at Libreville from JO to 12 August I 977, finally decided to adopt a resolu­ tion, the gist of which is as follows. The resolution recalls, in its preamble, the relevant resolutions adopted by OA U to facilitate the peaceful settlement of disputes between member States, in par­ ticular resolution AHG/Res.160), which solemnly de­ clares, inter alia, that "all member States pledge them­ selves to respect the borders existing on their achievement of national independence··, and resolu­ tion AHG/Res.27(11), whereby th'! member States of OAU solemnly undertake to act in conformity with article III of the Charter. Article Ill of the Charter provides, inter alia, for: "I. The sovereign equality of all member States; "2. Non-interference in the internal affairs of States; "3. Respect for the sovereignty and territorial 