On 24 November, by the unanimous adoption of resolution 1276 (1999), the Council extended the mandate of the United Nations Disengagement Observation Force for a further six months, until 30 May 2000, and called upon the parties concerned to implement immediately resolution 338 (1973) of 22 October. A growing crisis in Kosovo, Federal Republic of Yugoslavia, exploded in 1999 and resulted in widespread destruction and displacement. In a statement by the President on 19 January, the Security Council strongly condemned the massacre of 45 Kosovo Albanians by Serb forces in Racak, Kosovo, and is deeply concerned about the report of the Organization for Security and Cooperation in Europe (OSCE) Verification Mission that the victims are civilians, including women and at least one child, acted. „The Security Council calls on the parties to immediately cease all acts of violence and to enter into talks towards a lasting settlement. He warned the Kosovo Liberation Army (KLA) against actions that contributed to the tension. In unanimously adopting resolution 1247 (1999), in several parts, the Council also decided that the IPTF should continue to be entrusted with the tasks set out in the peace agreement, including the tasks referred to in the conclusions of the London, Bonn, Luxembourg and Madrid conferences and agreed upon by the authorities of Bosnia and Herzegovina. According to Human Rights Watch, senior KLA leaders accused of killings and body transfers to Albania are still aware, some in high government positions. [142] In 2016, a special court was established in The Hague to investigate crimes committed in 1999-2000 by members of the Kosovo Liberation Army against ethnic minorities and political opponents. [143] In accordance with the provisions of the agreement, the withdrawal must be completed before 21 June. On 8 July, the Council held a one-day debate on the outrage, demobilization and reintegration of former combatants in peacekeeping and subsequently expressed, in a presidential statement, a deep concern about the continuation of a number of conflicts despite the peace agreements reached by the belligerents.

The Council recognized that the availability of large quantities of weapons, in particular small arms and light weapons, to belligerents was an essential factor in these conflicts. The Mission`s mandate was renewed, this time until 30 November, by Council resolution 1262 (1999) of 27 August. .