Warsaw Army

Created on 8 September, eight days after the invasion begun, it was an improvised formation charged with the defence of the Polish capital of Warsaw (Warszawa).

Initially the only organized units available to him were four infantry battalions, anti-aircraft artillery and anti-aircraft machine guns detachments under colonel Kazimierz Baran, composed mostly of fire-fighter brigades and volunteers supervised by colonel Tadeusz Bogdanowicz and Julian Kulski, the deputy president of Warsaw.

On 8 September General Juliusz Rómmel, the commander of the Łódź Army who had become separated from his operational units, arrived in Warsaw with his staff.

The chief of staff of the Polish Armed Forces, general Wacław Stachiewicz (then in Brześć), appointed him the overall commander of all forces defending Warsaw, including the Warsaw Defense Force, the Modlin Fortress and the army units immediately south and north-east of Warsaw [2] During the next days, army units retreating in face of the onslaughts of the German armor and under continuous air attacks, fought their way through the German lines to the besieged capital, in particular from the Battle of Bzura.

On 26 September, after heavy bombardment had cut off water and the civilian population was starving, the city was forced to surrender.