In early December 1937, the Kuomintang concentrated 200,000 troops around Nanjing to participate in the Battle of Defense of Nanshi. Due to the backward weapons, the Japanese invaders were pursuing the victory, and the Chinese army suffered heavy losses, especially a certain divi

In early December 1937, the Kuomintang concentrated 200,000 troops around Nanjing to participate in the Battle of Defense of Nanshi.

Because of backward weapons, the Japanese invaders were pursuing the victory. The Chinese army suffered heavy losses, especially a certain division of the Sichuan Army. Because most of the guns and bullets were inferior, the officers and soldiers could only resist the crazy attack of the Japanese with their flesh and blood, and almost wiped out the entire army. One regiment of the division did not directly participate in the war because it was responsible for the guard duty against the enemy on the flanks of the position. Later, he was forced to enter Qinglong Mountain. After entering the Qinglong Mountain area for more than ten miles, there was no news from the troops, and more than two thousand people disappeared without a trace.

After the war ended, the Japanese General Command discovered this mysterious disappearing force when counting the results of the invasion. In 1939, this mysterious incident was also noticed when counting the combat situation in the Kuomintang combat base in Chongqing. . After the victory of the Anti-Japanese War, . The Kuomintang’s Ministry of Military Affairs and the Military Order Department sent special personnel to investigate, but they still couldn’t find out the truth and finally ended up in the end.

Later, some people speculated whether this army broke out in dispersed ways. After careful analysis, they found that the Japanese army's war situation and troops deployed that year were determined that the possibility of their breakthrough was very small. To take a step back, even if the Kuomintang army really breaks out, there will be some information. Why did it happen to discover this mysterious incident in 1939 that the entire group of people was unknown?

For more than half a century, there is a guess among all kinds of speculations that convinced everyone: this army may have hid in a small-known huge cave, and was later trapped in the cave for unknown reasons...

This incident also attracted the attention of the British media. Observer magazine compared it with the mysterious disappearances on the mountaineering grounds of mar , and attracted another mystery in the history of world military in the 20th century.