What I was taught in school (1950’s), before the liberals changed history was the invasion of Japan would have cost the lives of approximately 500,000 allies.
We didn’t start the war but we sure as hell ended it and we could have won every war since then and in 1/3 the time it took to win WW2 (only 3.5 years)if we showed the same committment to winning as we did in WW2.