I never said that the US made the greatest contribution. I'm simply stating that it is silly to say that the US did not play and important role in the war. Regardless of how well the they actually fought, the sheer anount of men and industrial power that the US brought to the war was a major factor in ending the war. If you look at statistics, it's really impossible to argue this. Unless if you create another strawman and argue against a point I never made.
I never said you said, in fact i was agreeing with you
but i'm not native english speaker so my sentences can look rudes on the way i turn em. Sorry.
Yes you true, that is why i said they were decisives and not the greatest helpers too
But the men they gave us were more usefull by replacing experienced and veteran units we could use in decisive actions, and to rebalance the size of armies in our way. This explanation was an agreement to your sentence about amuricans thinking they won the war alone ( as for ww2 when we know USSR fought 80% of axis troops) because they saw history by the biased view of modern era.