In 2004, the ILPAP, the operator of trolleybusses in Athens, Greece donated nearly all of its old ZiU-9 trolleybuses to the city of Belgrade, although Belgrade had ZiU-9 trolleys of its own since late 1970s.
In 2004, the ILPAP, the operator of trolleybusses in Athens, Greece donated nearly all of its old ZiU-9 trolleybuses to the city of Belgrade and to Gerorgia. Although Belgrade had ZiU-9 trolleys of its own since late 1970s.