A Korean Tragedy.
The Back Story 3. The Qing Empire and Korea.
As summarized in the previous entry the Manchus became the dominant political power in N. E. Asia. Nurhaci, an ambitious local ruler, once swearing loyalty to the Ming, began to organize an attempt to win control of China. In 1636, under the name of the Qing dynasty Korea was invaded and the Joseon Dynasty was forced to cut off their relationship with Ming China and submit to a vassal status to the Manchurian Qing. By 1644 Qing armies were in Beijing and on their way to control of China. During the years when the Qing Dynasty controlled China, Korea had a close relationship with the Qing, but by the beginning of the 20th century that relationship had weakened and would soon prove to be useless.
In the above 400-500 years of history Koreans experienced many tragedies, but the worst tragedies were still to come.
In the nineteenth century ambitious European powers began to seek to colonise East Asia. At first East Asians – Japan, Korea and China in particular attempted to close their borders to these new aggressions.
And, it is in the political machinations that occurred under the pressure of European aggression that today’s Korean tragedy began to unfold.
Around China's borders, under both the Ming and Qing regimes, relationships were built with most neighbour states, not just with Korea.** Most of those relationships revolved around what we may call today a "favoured nation' status. That is, a right to trade with China. These relationships could be widespread, for example the Ryukyu Kingdom, centred on what is now Okinawa had a relationship with Qing China. In the Philipinnes (before the Spanish) a small kingdom had a relationship with China. The north of Vietnam was in a tributary relationship with Qing China, as did a northern section of Burma (now Myanmar). Tibet also had submitted to the Qing before the Qing took control of China. Tibetan Buddhism was the form of Buddhism used by the Imperial Qing family.
However, under pressure from various European states, Great Britain, France, Germany and Russia, all these previous alliances and relationships came under pressure.
The reactions of the key states, China, Japan and Korea. was to close their borders. As a policy it failed.
** A list of tributary alliances can be found in this Wikipedia entry:
https://en.wikipedia.org/wiki/List_of_tributaries_of_Imperial_China