Great Britain would have been speaking German if the US did not provide money, tools to build Spitfires and Hurricanes and electronics for the land based radars to defeat the Nazis in the Battle of Britain. So it is for defeating the Putin's Nazis.
Not to take away the sacrifice of those on the western front but look at numbers of troops, vehicles, horses and Divisions in the east for some perspective.
What we excelled at was manufacturing and getting there the fustus with the mostos we had.