With Lend-Lease equipment. No matter what way you cut it, multiple nations defeated the Nazis together.
By the time the western allies reached Berlin the Soviets had already wrecked the Germans.
No one is arguing the US fought on the eastern front, the argument is over who suffered the most.
Don't take my word for it, read "When Titans Clashed" by Glantz and House.
The US and their vassals merely made you believe their propaganda: Patton the movie et al.
Are you British? They play word games.