 Nyora kupfuurira kweiyi ndima - Muna 1942, Kühn nedhivhizheni yake vakarairwa kuti vabatsire mukurwisa-kurwisa mauto eRussia munzvimbo yeIzyum, ndiko kwaive kunowanikwa chikwata ichi kusvika pakati paMay 1942. Musi waApril 22, 1942, Kühn akapiwa muchinjikwa weGerman muGoridhe. Munguva yeHondo yechipiri yeKharkov, chikamu chakarayirwa kuti chifambe kuenda kuStalino, ndiko kwaiwanikwa pakupera kwaJune 1942. Musi wa 30 Chikumi 1942, Kühn akasiya 14th Panzer Division, uye musi wa 1 Chikunguru 1942, akasimudzirwa kuva Generalleutnant. Musi wa 10 Gunyana 1942 akagadzwa General weArmy Mechanization kuOKH. Pana 23 February 1943, nemirairo yakananga kubva kuna Adolf Hitler, akaiswa mutariri wezvinhu zvose zvemotokari zveWehrmacht yose. Pana 1 April 1943 akasimudzirwa kuva General der Panzertruppe. Musi waFebruary 15, 1944, akaurayiwa muBerlin air raidpaBristol Hotel. 