The Balkan Line (Russian: Балканский рубеж, Balkanskiy rubezh; Serbian: Балканска међа / Balkanska međa) is a 2019 Russian–Serbian action film directed by Andrey Volgin,[2][3][4] dedicated to the secret operation to capture the Slatina Airport in Kosovo during the NATO bombing of Yugoslavia. These events have become the most dangerous aggravation of relations between the Russian ..