How did the US seek to counter the Japanese in the Pacific and the Germans in Europe?

The U.S. sought to counter the Japanese in the Pacific through a strategy of island hopping, capturing key islands to establish bases for advancing closer to Japan, while also employing naval power to defeat the Japanese fleet in significant battles like Midway. In Europe, the U.S. collaborated with Allied forces, launching the D-Day invasion to establish a foothold in France and subsequently pushing German forces back through coordinated military campaigns. This dual approach of leveraging both military might and strategic alliances was crucial in turning the tide of both theaters during World War II.