[4] German forces appeared in the vicinity of the city on 3 September and some early clashes most likely took part on that day.

[1][2][6] German soldiers reported being shot at in a number of incidents, suffering about 15 total fatalities in the process of securing the city.

[1] Einsatzgruppen units were also active in Katowice and Silesia, and one of their standing orders was to summarily execute all identified former Polish insurgents .

There are also individual and mass graves, as well as several memorial plaques dedicated to the victims of the defense of Katowice, including those who had been executed.

[9][10] During anniversaries of World War II a number of those monuments are visited by government officials and activists.