From June 1943, Lobov was appointed as Deputy Commander of the 322nd Fighter Aviation Division. Flying La-5 and La-7s, he fought in the Western, Bryansk, 1st Baltic, 3rd Belorussian and 1st Ukrainian fronts. He participated in the Battle of Kursk, Bryansk, Nevel, Gorodok, Belorussian and Vistula-Oder offensives. On 25 July 1944, he led an aerial assault at a railway station in Tilsit, East Prussia. On August 1944, Lobov organized and personally led a series of 4 assault air strikes against the largest enemy airfields in East Prussia. During the change of command of the division from 1 November to 14 November 1944, he temporarily served as division commander.