 Complete the following phrase:  Louis-Victor-Léon de Rochechouart entered the Russian army at the rank of sous-lieutet and became aide de camp to the duke of Richelieu. He rose through the ranks, serving as a lieutet in the imperial guard, then aide de camp de lempereur Alexander I of Russia. From 1805 to 1812, he participated in the conquest of Bessarabia and Circassia, fought in Caucasia and Chechnya. When France invaded Russia in 1812, Rochechouart was mobilised in general Tormassovs army. He participated in the capture of Minsk, then at 