Watch Balkan Line Online Free on 123movies, Balkan Line (2019) Full Movie Stream Online 123 Cineplex with English Subtitles. NATO bombs Belgrad March 1999. June: Serb army pulls out of Kosovo. Some Muslims believe they can now plunder, rape and kill Serbs in Kosovo. 5 Russians are to take Kosovo's airport from such bandits and hold it until peacekeepers arrive.