After his return to his homeland, he was a longtime teacher (between 1859 and 1880, intermittently) at the Artillery School, and served three times (1865–1868, 1874–1875, June–November 1880) as its Chief. In 1870 (now with the rank of major) he was again in the Prussian General Staff, this time as an observer of the fighting in the Franco-Prussian War. He witnessed the sieges of Metz and Strasbourg.