The Hawaiian Theater commonly known as The Hawaiian Campaign was a major part and opening to the Western Invasion of the United States of America, featuring Japan's Invasion of the Provenance of Hawaii that lasted on November 21st, 1946, to February 2nd, 1947. It was credibly known as America's last stand in the home front during the time of the final days of the Second World War.
Despite having strong defenses, and holding out for literally 3 months, the United States was eventually overrun on Hawaii, and the Islands fell to the Japanese on February 2nd, 1947. The Fall of Hawaii would leave the United States open for a Japanese Invasion by April 14th, of that same year.