September 19 - Gen. Komorowski "Bór" in an appeal to the insurgents called for further armed resistance against the Germans.
September 20
- The next units of the 2nd Infantry Division of the Polish Army crossed the Vistula to the Czerniakow bridgehead.
- Commanded by Lt. Mazurkiewicz "Radosław", a unit of about 200 insurgents got through the sewers from Czerniaków to Mokotów.
- Gen. Komorowski "Bór" gave the order to create the Warsaw Corps of the Home Army - regular units of the Polish Army composed of the insurgent forces. General Chruściel "Monter" was appointed commander of the corps.
