No type of technology showcased this battle for supremacy better than the fighter planes. Throughout the war, the Allied and Axis forces constantly worked to improve the abilities and features of their equipment. World War II was often a battle of technological advances. Mitsubishi Zero fighter planes like this one were the heart of the Japanese aerial force that attacked Pearl Harbor. The key to this successful attack was the Japanese aircraft, particularly the Mitsubishi A6M Type 0 fighter, commonly known as the Zero. The Pearl Harbor raid was successful, resulting in the loss of 2,403 American lives, as well as the destruction or damage of 21 U.S. On that fateful day, a little before 8:00 a.m., the Empire of Japan attacked Pearl Harbor in a preemptive strike meant to cripple the United States before they could join the Allied Forces in World War II. 'A date that will live in infamy.' That is how U.S.