I le aso 9 o Aperila 1944, na tofia ai Lang e avea ma "Oberleutnant" (Faiva Sili) ma "Staffelkapitän" o le 9./JG 54 (9th Squadron of the 54th Fighter Wing) o loo auai i le Puipuiga o le Reich i le Western Front
. Na avea o ia ma le 448th mauaina o le Knight's Cross o le Iron Cross ma Oak Leaves () i le 11 Aperila 1944 ina ua maeʻa 144 manumalo i luga o le ea, na fai mai uma i le Eastern Front. Na faia e Adolf Hitler le folasaga i le Berghof, o le fale o Hitler i le Obersalzberg o le Bavarian Alps, i le aso 5 o Me 1944. Na auai foʻi i le sauniga Anton Hafner, Otto Kittel, Günther Schack, Alfred Grislawski, Erich Rudorffer, Martin Möbus, Wilhelm Herget, Hans-Karl Stepp, Rudolf Schoenert, Günther Radusch, Otto Pollmann ma Fritz Breithaupt, o ē na mauaina uma le Oak Leaves i lenei aso.