The Freikorps leaders had agreed upon Höfer as commander; he led them to success in the Battle of Annaberg.

Uproar over the Upper Silesia plebiscite of 1921 led to a third uprising, which culminated in the Battle of Annaberg.

In 1921, while still part of Germany, the hill was the site of the Battle of Annaberg during the Silesian Uprisings.

The German Freikorps launched the assault in what would become the Battle of Annaberg, which was fought between 21 May and 26 May 1921.

In 1921 Generalleutnant von Hülsen commanded units in the Battle of Annaberg in Upper Silesia.

From 1919-1921 three Silesian Uprisings occurred among the Polish-speaking populace of Upper Silesia; the Battle of Annaberg was fought in the region in 1921.

During the Third Silesian Uprising in 1921, his troops were foremost in the reconquest of the low mountain at the center of the Battle of Annaberg, gaining Von Heydebreck the epithet of "the Hero of Annaberg".

On 21-23 May, in the Battle of Annaberg, unofficial German forces of the Upper Silesian Selbstschutz and the Bavarian Freikorps Oberland, under the command of Generalleutnant Bernhard von Hülsen, retook the hill despite having no artillery of their own.

Oberland was instrumental in crushing the Bavarian Soviet Republic in April 1919, fought against the Ruhr workers in March and April 1920, and was a critical factor at the battle of Annaberg which drove the Poles from Upper Silesia in 1921 during the Silesian Uprisings.