Pearl Harbor
Pearl Harbor, Hawaii
The base was at Pearl Harbour, in Hawaii.
America placed an embargo on oil and steel which hurt Japan greatly and they needed a base in the pacific and the American fleet was in the area so they had to destroy it before expanding
It was an American attack on a confederate military base.
Different sides? There are no different sides. Japan planned and executed an attack on the American Naval Base at Pearl Harbor.
Only Japan's Naval submarines and airplanes attacked the base.
Hawaii
You have some serious reading to do. Pearl Harbor did not attack Japan. The US Naval Base at Pearl Harbor HI was attacked by the Japanese on Dec 7, 1941. The American ships were tied up at their morring points in the harbor, and there had been no declaration of war. This was an unprovoked attack by Japan on the United States.
Pearl Harbor
Okinawa,where American base is located.
Japan wanted to neutralise it as a base for American forces.