History of Hawaii
Pearl Harbor was surprisingly attacked on December 7, 1941 by the Imperial Japanese Navy, killing 2,403 people and sinking the main American battleship fleet. Fortuitously, the four Pacific aircraft carriers were not in port and escaped damage. Hawaii was put under martial law until 1945. Unlike the West Coast of the United States in which 100,000 ethnic Japanese citizens were interned, the Japanese American population in Hawaii completely avoided such similar fate, though hundreds of pro-Japan leaders were arrested. Pearl Harbor was the U.S.' main forward base for the Pacific War. The Japanese tried to invade in summer 1942 but were defeated at the Battle of Midway. Hundreds of thousands of American soldiers, sailors, Marines, and airmen passed through on their way to the fighting.
Doolittle Raid
Despite the minimal damage inflicted, American morale, still reeling from the attack on Pearl Harbor and Japan's subsequent territorial gains, soared when news of the raid was released. The Japanese press was told to describe the attack as a cruel, indiscriminate bombing against civilians, women, and children. After the war, the casualty count was 87 dead, 151 serious injuries, and more than 311 minor injuries; children were among those killed, and newspapers asked their parents to share their opinion on how the captured raiders should be treated. For years before the attack on Pearl Harbor, there had been mock air raid drills in every Japanese city, although China's air force was almost nonexistent; this may have been part of the process of keeping warlike emotion at a high pitch.