Serbian President Aleksandar Vucic oversaw large-scale military drills at Batajnica airport near Belgrade.
Hungarian Prime Minister Viktor Orban and Republika Srpska President Milorad Dodik were also present at the event.
Serbian President Aleksandar Vucic oversaw large-scale military drills at Batajnica airport near Belgrade.
Hungarian Prime Minister Viktor Orban and Republika Srpska President Milorad Dodik were also present at the event.