During years 1918-1939 Polish Army have been reformed and reequipped several times. In 1936 latest version of the infantry uniform was introduced – wz. 36 (pattern 36). It's design was focused on combat utility, more than any other previous scheme. Also the differences between officer and infantry outfits were significantly reduced. The color, called “Polish khaki”, as well as the style and materials, was more siutable for combat conditions.
Standard infantry weapon was 7.92mm caliber, bolt-action Mauser rifles. Lacking sufficient number of Mausers, mainly for reserves and Bataliony Obrony Narodowej (National Defence Batalions), some of the units were equiped with Russian-made Mosins or French-made Lebels. Polish infantry did not used standard light machine guns as a support weapon. Instead one of the soldiers in the team was armed with wz. 28 Browning automatic rifle, Polish version of famous B.A.R..
Well-trained and determined to defend homeland Polish Army fought bravely during the September Campaign. Despite being outmatched, both on land and in the air, defence forces resisted the Blitzkrieg for over a month. With numerous combats Polish soldiers have proven their bravery and commitment, fighting against the odds. The largest and most ambitious batlle took place on the banks of Bzura river. Polish counter-offensive surprised Germans and pushed them away for over a week, but eventually courageous Poles were forced to retreat. In the end almost 20 000 soldiers lost their lives and 170 000 were captured.