The background of Luo Chan's conquest

/kloc-in the 1940s of 0/7, Russia invaded the Heilongjiang River Basin in China, established colonial settlements such as jaxa, and slaughtered local soldiers and civilians. At that time, the Heilongjiang River Basin was under the jurisdiction of the Qing Dynasty, which coincided with the entry of the Qing army and the war to unify China. As a result, the rear was empty and there was no time to take into account Russia's aggression against the northeast frontier. In 1950s, Russia's expansion became increasingly rampant. Russian Cossacks led by Onufury stepanov (онурртепанов) invaded the Songhua River from Heilongjiang. At this time, the war between the Qing Dynasty and Nanming was in full swing, and almost all the troops of the Eight Banners in Northeast China were transferred to the Central Plains, and their troops were extremely empty. 1647, Ningguta (now Ning 'an, Heilongjiang Province) had only 130 troops, which could not effectively resist the Russian invasion. 1652 (the ninth year of Shunzhi), the general of the Qing army, Heather and others, fought against Russia, and the Qing army lost. Facing the grim situation of Russian aggression, the Qing government began to take corresponding countermeasures. 1653 (the tenth year of Shunzhi), the Qing court established Angbang Zhang Jing in Ningguta, and Sha 'erhuda was the first Zhang Jing. At the same time, an additional 300 troops were sent to Ningguta to contact the Hezhe, Fayako and other indigenous people bullied by Russia to fight against Cossack aggression. However, the strength of the local Qing army is still weak, especially the firearms equipment is insufficient. Therefore, the Qing dynasty began to request the assistance of the client country North Korea.

North Korea became a vassal state of the Qing Dynasty after the "Bing Zi Rebellion" in 1636, and it was its duty to help the suzerain fight. Moreover, North Korea's military assistance to the Qing Dynasty was not unprecedented. In the Song-Jin War between the Ming and Qing Dynasties, the Korean army recruited by the Qing Dynasty participated. In order to repel the Cossack cavalry who used firearms, the Qing Dynasty specially instructed North Korean noncommissioned officers to "make good use of flying birds" and use cold weapons as the main weapon to prepare for the shortage of the local Qing army. The recruitment of North Korea in the Qing Dynasty not only strengthened its military strength and increased its chances of winning, but also tightened its control over North Korea. North Korea was forced to become a vassal state of the Qing dynasty, and its heart was full of resentment against the Qing dynasty, and the "northern expedition theory" was rampant. Korean king, who was in power at that time, was a staunch Northern Expedition theorist and secretly took active measures to "fight against the Qing Dynasty and regain sight". The Qing Dynasty naturally knew the different plans of North Korea, so the six ambassadors were to blame. In this case, the Qing dynasty recruited North Korean soldiers to test their loyalty, tighten control and prevent North Korea from having bad intentions.

This is the first time that North Korea has no contact with Russia. North Korea translated Russia (россия, Russia) into "Luochan", which was similar to "Luocha" in the Qing Dynasty at that time. In addition, there are other historical materials of North Korea, such as "Hunche", "Land Car", "Lao Cha" and "Lao Qiang". For example, Li Ling, a famous realist in later generations, left such a record: "I was nine years old in the filial piety temple, and the great country recruited our soldiers to assist the Chehan thieves. Che Han, Luo Chan also. " 1654 (11th year of Shunzhi, 5th year of filial piety in North Korea) In February, the Qing Dynasty sent Han Juyuan, an envoy to North Korea, with news from the Ministry of Rites of the Qing Dynasty: "North Korea chose 100 people who are good at shotguns. The Huining government led by Angbang Zhang Jing went to collect Luochan and arrived at Ningguta on March 10. " After the "six ambassadors reprimanded", North Korea has restrained a lot, so it obediently listened to the words of the Qing Dynasty and sent troops. At the suggestion of Zheng Taihe, the leader of the government, North Korea decided to take the military forces of Hou Yujing Xianlu as the general and began the "Luochan Crusade".