By 1998 , international pressure compelled Yugoslavia to sign a ceasefire and partially withdraw its security forces . Events were to be monitored by Organization for Security and Co-operation in Europe ( OSCE ) observers according to an agreement negotiated by Richard Holbrooke . The ceasefire did not hold and fighting resumed in December 1998 , culminating in the Račak massacre , which attracted further international attention to the conflict . Within weeks , a multilateral international conference was convened and by March had prepared a draft agreement known as the Rambouillet Accords , calling for the restoration of Kosovo 's autonomy and the deployment of NATO peacekeeping forces . The Yugoslav delegation found the terms unacceptable and refused to sign the draft . Between 24 March and 10 June 1999 , NATO intervened by bombing Yugoslavia aimed to force Milošević to withdraw his forces from Kosovo , though NATO could not appeal to any particular motion of the Security Council of the United Nations to help legitimize its intervention
Račak massacre
Račak massacre
Kosovo