 Complete the following phrase:  In 1921, during the Silesian Uprisings, when Poland tried to separate Upper Silesia from the Weimar Republic, Strachwitz served under the Generals Bernhard von Hülsen and Karl Höfer. At the peak of the conflict when the Poles dug in on the Annaberg, a hill near the village of Annabergpresent-day Góra Świętej Anny. The German Freikorps launched the assault in what would become the 