In 1997, the Kosovo Liberation Army (KLA) emerged as a fighting force and began carrying out attacks and assassinations against Serbian civilians, paramilitia and security forces as well as Albanians deemed to be "collaborators". The Serbian response was, as the KLA had predicted, forceful and often indiscriminate. By 1998, the KLA had grown into a full-scale guerrilla army, 100,000 Kosovo Albanians were refugees and the province was in a state of virtual civil war. Rugova was re-elected president in the same year and was awarded the Sakharov Prize for Freedom of Thought by the European Parliament. However, he was by now clearly being eclipsed by the KLA. This was highlighted in February 1999 when he was passed over in favour of the KLA's political chief Hashim Thaçi, who was chosen by the underground Kosovo Assembly to head the Kosovo Albanian negotiating team in the discussions on the aborted Rambouillet Agreement.