Poland and Belarus will carry out a joint air exercise in Kraków in preparation for the 2023 European Games in the Polish city.
The drill will also be used as preparation for the 2021 International Ice Hockey Federation World Ice Hockey Championship, to be held in Belarus and Latvia.
Both nations will exchange information on flights and will involve their air force and air defence units, the Belarussian Defence Ministry said.
The Ministry added that these measures will improve the protection of their nation's border and allow the countries to respond quickly to any potential air space incidents.
Drills will also help cooperation between the countries towards counter-terrorism, it is hoped.
The 2023 European Games comes after the inaugural event in Baku in Azerbaijan in 2015.
Belarus hosted the second edition in Minsk last year.