 Complete the following phrase:  Prince Ilia, known in Russia as the tsarevich Ilya Georgyevich, was commissioned in March 1812 as a podporuchik of the Jäger Guards Regiment, with which he served in the war with Napoleons Grande Armée. Under the command of Major-General Karl von Bistram, he fought at Smolensk and was marked for distinction at Borodino. In September 1812 illness forced him to retire from active service to Moscow. During the 