 Complete the following phrase:  At the start of Operation Barbarossa, the division passed under the operational command of the XIth Corps Wehrmachts 11th Army, led by General Eugen Ritter von Schobert. Romania joined Operation Barbarossa on 22 June in order to reclaim the lost territories of Bessarabia and Northern Bukovina, which had been annexed by the Soviet Union in June 1940. Sion crossed the Prut River with the 1st Armored Division during the night of July 23, at the start of 