After the Battle of the River Crossing in 1949, the Second Field Army, the Third Field Army, the Four Fields Advance Corps and other units of the People's Liberation Army advanced to the southeast, southwest, and central and southern provinces, sweeping away the remnants of the Kuomintang. Some of these Kuomintang troops fled south, some were captured by the People's Liberation Army, some fled to Taiwan, and some fled to Vietnam, Myanmar and other countries. Many of the Kuomintang troops who fled to Southeast Asian countries were later taken to Taiwan by the Kuomintang army, but one unit not only did not return, but took root in Southeast Asia, this unit was the Kuomintang 93rd Division.
During World War II, the 93rd Division of the Kuomintang Army was incorporated into the Expeditionary Force and participated in the operations into Burma, inflicting heavy losses on the Japanese army. During the Liberation War, this unit was incorporated into Li Mi's Eighth Army. After the Battle of Hengbao, Li Mi's Eighth Army was defeated by Siye, Li Mi left his troops behind, and fled to Taiwan alone, but the 93rd Division of the Nationalist Army fled all the way south, from Guangxi all the way to the junction of Burma, Thailand and Laos.
The Nationalist 93rd Division drifted in the northern Burmese region for more than half a year before it settled more than 7,000 officers and men and their families with another regiment and the remnants of a division. At first, the Burmese government did not want to accept this force, so it sent troops to attack the 93rd Division, these Nationalist troops, wanted to eliminate them, the 93rd Division, although repeatedly defeated in the civil war, but also the elite Kuomintang troops who had fought for decades, so it did not take too much effort to beat the Burmese government troops and flee.
The 93rd Division did not want to drift in northern Burma at that time, and wanted the Kuomintang to take them to Taiwan, but Li Mi did not think so, and he saw that his remnants had won the battle in northern Burma, so he immediately asked Chiang Kai-shek for credit and asked this unit to prepare for a counterattack. In 1951, after the 93rd Division had rested for a year in northern Burma, Li Mi asked the commander of the 278th Regiment of the 93rd Division to lead a counterattack with troops.
At first, the People's Liberation Army did not pay attention to the remnants of the Kuomintang army that had fled to northern Burma, nor did it leave too many troops in the border area, and as a result, it was caught off guard by the 93rd Division, and the 278th Regiment of the 93rd Division conquered four border cities in a row. Nino quickly dispatched three divisions to the border before repelling them.
After the 93rd Division returned to Burma, burma again called in India for help, hoping to take advantage of the fact that the 93rd Division had just fought a defeat and destroy it in one fell swoop. However, in this battle, the 93rd Division still won the victory, with less than 10,000 troops to defeat the Indo-Burmese army. Burma really had no choice, could not fight and fight, could not drive away, so ran to the United Nations and asked the Kuomintang side to withdraw this force to Taiwan. The Kuomintang army did not withdraw all the Burmese troops, and all the old, weak, sick and disabled were brought to Taiwan, and the main force did not move.
In 1955, Chiang Kai-shek remembered this unit again and wanted to use the remnants of the Kuomintang army in the Golden Triangle region to continue to invade the mainland. Chiang Kai-shek sent Liu Yuanlin, former deputy commander of the Eighth Army of the Kuomintang Army, to the northern region of Burma, and Liu Yuanlin graduated from the Huangpu Ivy, the Army University Instructor Class, and served as the chief of the guard of Major General Chiang Kai-shek's attendant room. After Liu Yuanlin arrived in northern Burma, he quickly integrated the remnants of the Kuomintang army in this area and grew it to 4500 people.
In the spring of 1960, the Kuomintang army also airdropped 400 special forces troops into the northern region of Burma to help train the troops, but in order to raise military funds, this unit also had to do the business of escorting opium and collecting opium transit fees. The actions of the remnants of the Kuomintang army in northern Burma made the Burmese government very helpless, so from 1957, the Burmese side expressed its hope that the Chinese border troops could enter the territory of Myanmar and strike at the nationalist troops entrenched in the northern region of Myanmar.
In 1960, After consultation, China and Myanmar jointly signed the coordination of the issue of demarcation guards. The agreement stipulates that in order to carry out guard combat tasks, Chinese troops can enter Myanmar for 20 kilometers as needed, clear the remnants of the Kuomintang army, and the Burmese army will cooperate, and the clearance operation will be carried out on November 22, 1960. The commander of the Kunming Military Region at that time was Qin Jiwei, commander of the 15th Army at the time of the Battle of Shangganling, who arranged for the relevant troops to conduct targeted training before the launch of this clearance campaign.
On the 21st, the intelligence department of the People's Liberation Army found that Liu Yuanlin was aware of it, so it requested the Burmese side to act a few hours in advance, and obtained the consent of the Burmese side. At 9:30 p.m. on the 21st, 22 commandos of the Kunming Military Region of the People's Liberation Army quickly rushed to the 16 strongholds of the remnants of the Kuomintang army, and the purpose of the commando operation was to arrest and annihilate the remnants of the Kuomintang army, the division-level officers, there were five remnants of the army at that time, and the division-level officers were within 20 kilometers of the Sino-Burmese border, but Liu Yuanlin's area exceeded the red line.
When the PLA troops arrived, the remnants of the Kuomintang army still thought it was the Burmese government army and immediately began to fight, but it felt wrong to fight, and when it was found that it was the PLA, it quickly retreated and retreated to the China-Myanmar border 20 kilometers away. The Burmese government army that blocked the remnants of the Kuomintang army in the rear was too low in combat, and instead of blocking the remnants of the Kuomintang army, it was defeated by it, and finally the commandos had to withdraw to the country.
In January 1961, Burma mobilized more than 10,000 people to encircle and suppress the remnants of the Kuomintang army, and Liu Yuanlin took the method of luring the enemy to go deeper, luring the Burmese government troops into the narrow and low-lying area of Wang Nankun, and the Burmese army suffered heavy losses and was in danger of being completely annihilated. On January 21, representatives of the Burmese military went to the front headquarters of Kunming, China, and asked the Chinese army to enter 100 kilometers of Burma to attack the Kuomintang army, and the People's Liberation Army agreed to their request, but the PLA did not fight smoothly in this campaign, and Liu Yuanlin adopted the tactic of fighting if he could fight too much, and then he ran away after fighting, retreating into Laos to temporarily avoid, in order to preserve strength, and when the PLA retreated, he fought back. But after the campaign, Liu returned to Taiwan, and the remnants of the Nationalist army in Burma all became Thai in 1970.