Conversation so far:
what two major battles allowed the u.s. to start the island hopping campaign
In the Battle of the Coral Sea, the US Navy checked a major Japanese offensive. In the Battle of Midway, US aircraft dealt a devastating blow to the Japanese navy.
what was island hopping during World War II
Island hopping was a military strategy employed by the Allies in the Pacific War against the Empire of Japan and the Axis powers during World War II.

Question: how did it work
Self-contained rewrite: how did island hopping work