Ask Imperial Japan, Nazi Germany, ==
US did them not alone. And US fought only 1/3 their forces. Other 2/3 was deployed by them against USSR. SO I know what US did and how. Not so impressive as a Hollywood propaganda.
Sorry, we defeated Japan mostly on our own. The Soviets jumped in at the last moments just to grab some territory. Also, the Soviets couldn’t have defeated the Nazis without us, the Brits, the Canadians, and all the others. The Nazis were still deep in Russia when we landed in France. Then let’s not forget Lend-Lease, without us, the Brits, and the Canadians, the Red Army would have been barefoot and starving. We gave them everything from gold braid to battleships.