The NATO-led KFOR (Kosovo Force) deployed into Kosovo to implement the peace settlement, which included the Military Technical Agreement (MTA) signed by Serbia and the undertaking by the Kosovo Liberation Army (UCK) to demilitarise and transform itself.
KFOR’s mission was to establish a military presence, deter renewed hostilities, verify and if necessary enforce the terms of the MTA and UCK undertaking, establish a secure environment for the return of internally displaced persons (IDPs) and refugees and international organisations, provide immediate basic life support to IDPs in Kosovo, provide initial basic civil administration and other non-military functions pending the arrival of international organisations and control the borders of the FRY in Kosovo with Albania and FYROM. On 28 April 2005, the KFOR operation became part of OPLAN 10501 JOINT ENTERPRISE for the Entire Balkan Operation Area.