How was "island hopping" a change in strategy for the US military?

A.

Instead of conquering every island occupied by the Japanese, the military focused on capturing key islands they could use as bases.

B.

Rather than invading the mainland of Japan, the US military focused on taking out small island strongholds.

C.

The US military no longer worked alone-it joined efforts with the Allies to take back islands throughout the Pacific.

D.

The US Army and the US Navy worked together to launch invasions of Japanese - held islands.

A.) Instead of conquering every island occupied by the Japanese, the military focused on capturing key islands they could use as bases.

Explanation:

The strategy was used to save time and resources so that the American fleet could cover Imperial Japanese territory faster and take advantage of the weak links in the defensive chain.

They also set up bases on conquered islands as staging areas to launch bombing runs against more-defended Japanese island fortifications to pin them down while the US fleet makes closer to Japan.