In the summer of 1939, Shanghai was under Japanese occupation. Wang Mutian and three or four boys of the same age of sixteen or seventeen engaged in their childish anti Japanese movement. Wang Mutian's fianc é, Hong Wangnan, was an engineer in the Kuomintang Air Force. He secretly sneaked back to Shanghai's network aircraft manufacturing talent to manufacture fighter jets for the Central Aircraft Manufacturing Plant
In the summer of 1939, Shanghai was under Japanese occupation. Wang Mutian and three or four boys of the same age of sixteen or seventeen engaged in their childish anti Japanese movement. Wang Mutian's fianc é, Hong Wangnan, was an engineer in the Kuomintang Air Force. He secretly sneaked back to Shanghai's network aircraft manufacturing talent to manufacture fighter jets for the Central Aircraft Manufacturing Plant