What was the strategy to seize key islands to close in on the Japanese mainland called?​

Philippines

Explanation:

on a alt btw

Leapfrogging

Explanation:

Leapfrogging, also known as 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. The key idea is to bypass heavily fortified enemy islands instead of trying to capture every island in sequence en route to a final target.

i think they came to washington to protest

missouri compromise of 1820 which prohibited slavery