The September 18 Incident (also known as the Fengtian Incident and the Wicker Lake Incident) was a war of aggression against China deliberately created and launched by Japan in northeast China, the beginning of the Japanese imperialist invasion of China, and the beginning of the All-out War of Resistance waged by the Chinese nation.
Therefore, since the September 18 Incident in 1931, after the Japanese occupation of northeast China, with the northeast as a base, launched a 14-year war of aggression against China, during which the Chinese killed and injured countless times, the economy also seriously reversed, almost all of China's major cities were ruined by the Japanese army, but there was a City of Heng that was outside the list, and the Japanese army had never entered it, that is, Macau.
Macau became a Portuguese colony after the Second Opium War. Logically, the Japanese army at that time had swelled to the point that if it wanted to invade the world, how could it not dare to invade a colony?
This has to start from their ambitions, when they have the idea of world domination, they began a large-scale immigration plan, many Japanese immigrated to the United States and Canada, but their ambitions were quickly recognized by the United States, they had to set their sights on South America, chose Brazil, and immigrated a total of 3 million people to Brazil.
Brazil was also a Portuguese colony at the time, and when Japan was preparing to invade Macau, Portugal gave the Japanese government a serious warning: "If the Japanese dare to enter Macau, then they will send more than three million Japanese expatriates in Brazil to concentration camps." For a land of bullets like Japan, 3 million is not a small amount, and Japan only invested about two million people in the entire war of aggression against China, and a word from the Portuguese government made the Japanese feel fear. So this is the Japanese invaders who choked the neck of Japan, and the greedy Japanese invaders did not dare to invade Macao in the end.
The Japanese army did not even pay attention to the US troops, sneaked attack on Pearl Harbor, Southeast Asia was almost occupied, but it was helpless to a projectile land, did not dare to march, it can be seen that the Japanese army still has a fear of opponents. To deal with the Japanese army, it should seize its lifeblood and make it scrupulous.