The declaration of war on the Third Reich by France and the United Kingdom. Mass manifestations of overjoyed people of Warsaw in front of the embassies of these countries.
In the south of the country near Węgierska Górka the fortified area, commanded by Cpt. Tadeusz Semik, filling scarce fortifications for over 20 hours repels the attacks of the 7th Infantry Division. This facilitates the reverse maneouver of the key Kraków Army.