1450 - 1750 // 2nd Manchu Invasion in Korea
It's been a decade since the Joseon Dynasty in Korea first attacked the Machu people of Northern China. Korea continuously defied  the Manchurians causing bad conditions within the trading, as well as socially. It was time for the Manchu to strike back. The second invasion of Korea by the Manchu took place in 1637. The previous invasion had proven to have been insufficient to subdue the strong Joseon Dynasty that continued to wield great power. This second invasion was the Manchurians way of controlling this dynasty.

The Qing Dynasty has taken over China, who showed support for the Manchu unlike the previous dynasty who favored Korea, the Jin dynasty. Even though the Manchu had carried out a successful campaign to subdue Korea, members of the higher class of the Joseon dynasty would still not bow to members of the newly installed dynasty of Qing. They would also not acknowledge any correspondence that referred to the presence of a new Manchu- installed dynasty.

While gathering many Manchu, Mongol, and Quin soldiers, they invaded the Joseon Dynasty in Korea to return what was right. Following the insubordination of the Joseon Dynasty, Manchu troops, led by Huang Taiji, went in pursuit of the dynasty's leader, King Injo. However, the King fled to a remote castle which he used as a fortress. While Taiji waited to make a move on the exiled King, he concentrated on getting the general population of Korea to accept Machu rule. He also held several members of the Joseon Dynasty captive. 

Eventually, food supplies and Korean forces started to yield no success towards the Manchu invasion. King Injo and his men left their fortress due tothese shortages. This was a victory for the Manchu. King Injo was forced to sign a declaration which stated that he and members of his family must recognize the Qing dynasty. The Joseon Dynasty must cut all connections with the Ming Dynasty and must serve in war against the Ming.

The second invasion of Korea by the Manchu left Korea in a devastated state since some of the Manchu soldiers and destroyed and burnt villages while they waited for King Injo to come out of his fortress. But in the end, the destruction of the Joseon Dynasty lead to the freedom of the Manchu in northern China. To this day, there are still influences and sustained tradition from the Manchu in Northern China.