Complex sentence: Separately, U.S. naval strategists came to adopt Bywater's controversial idea of island hopping to reverse Japanese advances in the Pacific and ultimately bring overwhelming naval and aerial superiority to bear against the Japanese forces.
Split into simpler sentences: Separately, U.S. naval strategists came to adopt Bywater's controversial idea of island hopping to reverse Japanese advances in the Pacific. As Bywater predicted, the U.S. strategy would ultimately bring overwhelming naval and aerial superiority to bear against the Japanese forces.