When untitled states joined world war 2 where were did the allies initially focus their military efforts

When the United States joined World War II, the Allies initially focused their military efforts on Japanese forces in the Pacific

Explanation:

nuclear fission produces the atomic bomb, a weapon of mass destruction that uses power released by the splitting of atomic nuclei the fighting in iwo jima and okinawa affected the allies' pacific strategy because truman decided to drop the atomic bomb on mainland japan.

lincoln declared that slavery should not be allowed to spread into the new states, and of course this angered the south at the time.