sentences:  On April 21, 2014 Slovakia and RAC MiG signed a contract for a three years long modernization programme for the air force's MiG-29 fighters.On July 28, 2014 Slovakian Minister of Defence Martin Glváč confirmed that the JAS-39 Gripen was selected as the new fighter aircraft for the Slovak Air Force.On December 12, 2018, Slovakia signed a contract to acquire 14 F-16 Block 70/72.