Where did Japan occupy during World War II?

Three northeastern provinces, Jehol, Suiyuan, Chahar, Hebei, Shanxi, Shandong, Henan, Anhui, Jiangsu, Zhejiang, northwestern Jiangxi, Hubei (only Dabie Mountain is in Guangxi's hands), Hunan, Fujian, Guangdong, Guangxi and Yunnan.

During World War II, the Japanese invaded China crazily, occupying more than 26 provinces 1560 counties and cities in China, with an invasion area of more than 6.6 million square kilometers, occupying more than two-thirds of China's land area.

During World War II, Japan did not invade Hong Kong and Macau, but in the later War of Resistance against Japanese Aggression, Japan attacked Hong Kong and Hong Kong fell. But Macao was not attacked by Japan.

Japan didn't invade Macao because it didn't dare at first. Macao belonged to Portugal during World War II, but this is not the reason why Japan did not occupy Macao. Actually, Brazil is afraid of taking Portugal's side. There are 3 million Japanese immigrants in Brazil. Brazil warned Japan that if Japan occupied Macao, the Japanese in Brazil would be retaliated.

At that time, Japan did not attack China with eggs. At that time, the population of China was 501700 million, that of the Soviet Union was1600 million, that of Germany was 69.85 million, that of Britain was 47.76 million, that of the United States was10/700 million, that of France was 41700 million, and that of Italy was 47.76 million. Therefore, Japan can mobilize and requisition more than 9 million soldiers to form a large-scale army that can fight on several fronts at the same time. Until the end of the war, the Japanese army maintained a scale of more than 7 million.

Apart from population and area, Japan is by no means a "small country" in economic development. Before World War II, Japanese economic strength ranked first in Asia, far ahead of China and other countries. The total economic output reached US$ 28.3 billion, making it the sixth largest economy in the world. The "Zero" fighter equipped by the Japanese naval air force is the best fighter in the early stage of the entire Pacific battlefield. In the half year after the Battle of Pearl Harbor broke out, "Zero" fighters almost ruled the entire western Pacific sky, which made the US military very headache.