From 17 August 1924 until 18 March 1926 he served as Chief of the Air Force Department in the War Ministry. An important figure in the development of the Polish air force, he attempted during this time period to implement a controversial armament program for the air force created by François-Lèon Leveque, a French officer who commanded the Polish Army's air force up until December 1922. The program called for the import of French-made aircraft to arm nearly 50 squadrons. Large amounts of credit were loaned by the French in exchange for purchase of French aircraft for the Polish air force. The rapid enforcing of the program by Zagórski resulted in the purchase of a large number of French aircraft through the "Francopol" company. By 1925, in terms of the number of aircraft, the Poles were considered a European aerial powerhouse. On the other hand, the quick purchase of such a vast number of aircraft overshadowed the fact that Poland lacked trained pilots to fly the newly purchased aircraft, lacked the proper facilities to base the aircraft in, and lacked properly trained technicians to service the aircraft. As a result, although Poland had a threatening force on paper, squadrons of airplanes rusted away, and along with it Poland's aerial potential. Additionally, despite having acquired reliable and superior aircraft such as the Breguet XIX or Potez XXV, Poland also purchased aircraft considered to be outdated, inferior, and marred with poor service and safety records, such as the SPAD S.61 or Farman F.68 Goliath.