Foreword: The nearest world war is the Second World War, which is a war of re-partitioning of the world by various countries of the world, in which Japan invades China and countries within Asia. Japan's burning and pillaging of Asian countries, especially China's aggression, was even more brutal. They burned and plundered in China, doing all kinds of evil, just like the demons of hell came to roam the world, and the Nanjing Massacre was a crime committed by the Japanese army. In this War of Resistance Against Japan, the Chinese people resisted to the death, and every ordinary person with a patriotic heart threw his head and spilled his blood, vowing to drive the Japanese devils to death from Chinese territory. However, at that time, China was backward, that is, millet plus rifles, people from all walks of life in China worked hard to resist the Japanese army, and the Eighth Route Army was the mainstay of the War of Resistance Against Japan. Until Japan announced its unconditional surrender in 1945, how many troops could the Chinese Eighth Route Army have left?

I. The Red Army reorganized and expanded its recruitment
In 1945, the Japanese Emperor submitted instruments of surrender to various countries, and China's War of Resistance Against Japanese Aggression gradually came to an end. As soon as this war ended, the official count of the remaining number of troops of the Eighth Route Army frightened everyone. The predecessor of the Eighth Route Army was the Workers' and Peasants' Red Army, and at the beginning this army was only 50,000 people. With the passage of time, the Red Army of workers and peasants continued to expand, increasing by 30,000 people. At the same time, the War of Resistance Against Japanese Aggression intensified, more and more soldiers were sacrificed, and the strength of the troops also needed to be quickly replenished, in order to be able to resist the aggression of the Japanese devils, the Eighth Route Army would expand many people every time. Because the Eighth Route Army believes that as long as it is united, it can resist external forces, and one person's fist cannot win over other people's four hands, but the fists of a group of people must be more powerful than other people's advanced weapons.
Second, the mainstay
In 1940, the Eighth Route Army had 400,000 troops, and the quality and ability of the army and its configuration were greatly improved. China had four major military regions at that time, and these four major military regions were the mainstay of existence at that time. Once the Japanese army issued a wild speech, saying that China would be destroyed in three months, but this war was fought for 8 years. They believed that China's Eighth Route Army was a millet plus rifle, which could not withstand their foreign guns and cannons, but the Eighth Route Army made them lose one after another. However, the Eighth Route Army also paid a terrible price, and in 1949, the Eighth Route Army's strength was constantly reduced, and fierce attacks followed. And in order to invade China, Japan came up with a "three-light policy."
Third, history is rare
For various reasons, the number of the Eighth Route Army was suddenly only 300,000 people, and in order to recruit more recruits to resist the invasion of the Japanese devils, the Eighth Route Army suddenly expanded to 900,000 people. At the end of the War of Resistance Against Japan, the Eighth Route Army had 1 million men, and the number of such troops even exceeded the combined number of troops expanded by western countries, which was rare in the world and in history. After the end of the War of Resistance Against Japan, the army of the Eighth Route Army once again threw itself into the civil war between the Kuomintang and the Communists, so its number was constantly decreasing.
Conclusion: The Japanese army has advanced weapons, but Chinese will never let the Japanese army annex China, even if it costs its life, Chinese will never let the Japanese army succeed, because every Chinese has the determination in his heart to offend china, although he will be punished from afar.