Fuß was born on 19 September 1920 in Altenhof near Meseritz in West Prussia, present-day Stary Dwór in western Poland.

These air elements supported Generalfeldmarschall (Field Marshal) Gerd von Rundstedt's Army Group South, with the objective of capturing Ukraine and its capital Kiev.

Gruppe had been ordered to the Eastern Front in preparation for Case Blue, the strategic summer offensive in southern Russia.

Gruppe supported the advance, claiming 23 aerial victories, including six by Fuß, making him an "ace-in-a-day".

During this battle, he engaged with Lydia Litvyak and his Messerschmitt Bf 109 G-2 (Werknummer 13758—factory number) took a hit in the fuel tank causing his engine to seize.

During the forced landing at Dedyurevo, an airfield approximately 75 kilometers (47 miles) northeast of Smolensk, his aircraft crashed and Fuß was severely injured.

[10] Obermaier and Spick also list Fuß with 71 aerial victories, of which claimed on the Eastern Front in over 300 combat mission.