Thanks to Isoroku Yamamoto's painstaking efforts, Japan's naval air force has developed rapidly, Japan's aircraft production capacity has jumped to the second place in the world, and the combat effectiveness of the air force has also improved rapidly. 1in August, 937, in order to cooperate with the army's large-scale invasion of China, the Japanese navy launched the "August 14th" air war. Although defeated, its cross-sea combat capability has attracted worldwide attention.