Defense of Ochota and Wola (1939)
The Defense of Ochota and Wola refers to military actions undertaken by the Polish Army on 8–9 September 1939 during the September campaign, in the districts of Ochota and Wola in Warsaw. The result was the repulsion of the German assault by the 4th Panzer Division and thus the thwarting of the German plan for a rapid capture of the Polish capital.
Source: Wikipedia — Defense of Ochota and Wola (1939) (CC BY-SA 4.0)