Why were the Pacific islands attacked and seized during the Allied island hopping in the Pacific involve?

The Pacific islands were attacked and seized during the Allied island hopping campaign primarily to gain strategic military bases and to cut off Japanese supply lines. Capturing these islands allowed the Allies to establish airfields and naval bases, facilitating further advances toward Japan. This strategy aimed to bypass heavily fortified Japanese positions, reducing casualties and accelerating the push towards eventual victory in the Pacific Theater during World War II.