Haha, you must get your information from holywood movies and proud american history teachers lol.
Not always what is learned in America is always true, many times historic information gets distorted by whom tells it.
The reason why the nazis were defeated was of course because or URSS, USA had very low impact, but they were there as a help, not the main cause or reason, USA was with the allies side.
Same thing with the right brothers, American thinks they were the first people to fly a Airplane, when there are many profs that Santos Dumont did years behind in Paris, he flew around the elffel tower, he went up and down with his aircraft while the right brothers were just launching planes out of a cliff and making it slow decent until it hits the ground, pretty much just floating into the air lmao. Its funny how a country can misinterpret the truth and make that as a mechanism to pretty much brainwash people