The Lithuanian Military Aviation was active in Lithuanian wars of independence battles with the Red Army and Polish military units. The pilot performing the most military sorties was Jurgis Dobkevičius, who later became the first Lithuanian aircraft designer and builder. On May 12, 1920, Vytautas Rauba was the first Lithuanian aviator to lose his life in an aircraft crash. On October 4 of the same year, in a fight with the Polish military, the first aircraft with a Lithuanian crew was shot down. The pilot of the aircraft, Juozas Kumpis, commander of Lithuania's First Air Squadron, was severely injured and died as prisoner of the Polish military.