The opposition parties in Serbia , most notably Serbian Renewal Movement and Democratic Party , have organised many massive protests during the 1990s . On 5 October 2000 , Yugoslav president Milošević was overthrown in massive protest on presidential results . Serbian elite police unit JSO , operated under the command of State Security Service during the 1990s , and its leader at the time Milorad Ulemek had major role in the overthrow of Milošević , to whom the unit was loyal in the past and executed many operations for him ; some , including Vuk Drašković dubbed the unit as " Milošević 's squadrons of death " ( see Ibar Highway assassination attempt ) . Following the transitional government , the Democratic Opposition of Serbia secured the supermajority in December 2000 parliamentary elections . On 25 January 2001 , Zoran Đinđić formed the cabinet and became the Prime Minister of Serbia
Ibar Highway assassination attempt
Ibar Highway assassination attempt
The Third Bullet