 Complete the following phrase:  After a few years his military career reactivated and by 1805 he was already major-general. He participated in the campaigns from 1806 to 1807 in East Prussia against France and 1810 in part of Turkey. He accompanied his father Eugen, who was commander of Prussian Reserve, in 1806. He joined staff of Russian General Bennigsen. In 1812, he was a division commander 4th div of II Corps under Barclay de Tolly. During the French invasion of Russia he fought at the Battles of Borodino and 