In early December 1937, as the Invading Japanese Army approached Nanjing from the south, Chiang Kai-shek hurriedly dispatched nearly 200,000 Nationalist troops to gather inside and outside Nanjing to participate in the defense of Nanjing.
The Japanese were well armed with heavy artillery, tanks, armored vehicles, and warplanes, while the Nationalists had only grenades, rifles, machine guns, and a small number of mortars. After a fierce battle, the commander of a regiment of the National Army saw the fierce offensive of the Japanese army, and in order to preserve his strength, he led the whole regiment of soldiers to the south and retreated. Soon, he led the team back to qinglong Mountain, which stretched for tens of kilometers at that time, and lost contact with the outside world, but no one thought that this would become a "permanent" loss.
The fighting was fierce, and no one would pay much attention to the disappearance of a regiment. After the brutal Japanese army occupied Nanjing, when they counted the so-called "results of the invasion", it was strange to find that the strength of one regiment of the Nationalist army had neither successfully broken through, nor had it been annihilated or captured, nor had they found any trace of them among the refugees, so they disappeared out of thin air.
The strange Japanese army carefully checked again and found that the strength of the regiment was still a mystery.
Later, the Nationalist government that retreated to Chongqing also discovered this strange phenomenon when counting the combat situation, when only a small number of Nationalist troops broke through the heavy encirclement of the Japanese army and all made contact with the central government, but there was no Sichuan Army inside, and the Nationalist military government did not receive reports of their defeat and capture. In order to determine the final destination of this unit, the National Government also sent people to search for them, but still did not find any traces of their disappearance, and finally they could only be classified as "missing and unknown".
The disappearance of more than 2,000 people in the whole regiment is not a trivial matter, and after the victory of the War of Resistance Against Japanese Aggression, the Kuomintang government asked the relevant departments to send special personnel to investigate again, but there was still no result, and finally it was not possible.
After the founding of the People's Republic of China, the relevant military experts came to the conclusion that they did not break through, and their remains were not found in Qinglong Mountain, and this collective disappearance became a suspense case in China's modern military history.
Where did this 2,000-strong problem group go? It's still an unsolved mystery.
Perhaps this team took the initiative to break into pieces and went their own way, and even more speculated that they entered the mysterious time and space tunnel, so they disappeared.
Later, many experts put forward their views, believing that the disappearance of more than 2,000 people may be related to the large area of caves in Qinglong Mountain, and they may have accidentally fallen into the caves without their knowledge.
In the early 1970s, some workers discovered several caves in the process of developing the coalfields in southern Jiangsu, and unexpectedly found some military helmets, rifles and several corpses with only white bones left in the caves.
According to local residents, there are many deep caves in this mountainous area, some caves are still very hidden, and some caves are buried by mudslides brought about by flash floods, and the mountain environment is difficult and difficult, these soldiers may really encounter unimaginable accidents after entering Qinglong Mountain and almost completely destroyed. I hope that some of them will survive and live a peaceful life in anonymity. In other words, without war, there would be no mysterious disappearance, so we should cherish the peaceful life now.