The US introduced industrial power and new weapons. To protect their country from being taken over by the US or another foreign power, Japan decided to become a "western" power. The US opening Japan to trade exposed them to the methods of a modern country.
I think your talking about in 1944 attacking Germany and landing in France, so we had Omaha beach and the take back of Leningrad also the battle for Berlin..Umm let me link a picture..