Miloš Biković was first offered the role of a Russian soldier, but he refused, deciding that it would be more logical for him to play a Serb in a joint film between Russia and Serbia. The real details of the operation in which Yevkurov participated (at that time - the GRU special forces major) are still under the stamp of secrecy, so the scriptwriters thought up the plot at their own discretion, and Yevkurov advised them on the reliability of what was happening. Kutsenko later met with producer Vadim Byrkin and General Yunus-Bek Yevkurov, who agreed to help him. The writer Ivan Naumov was invited to write the script, and he created a 600-page love story of a Russian peacekeeper and a Serbian girl. The idea of creating a film about the events in Yugoslavia came to Gosha Kutsenko in 2012, during a conversation with a friend, Slovak producer Vasil Shevts. The creators of the film The Balkan Line (from left to right): Andrey Volgin, Andrey Anaykin, Ivan Naumov