Answer:
The Korean War was a military conflict that went from 1950 to 1953 between the Democratic People's Republic of Korea (North Korea) and the allied People's Republic of China on the one hand and the Republic of Korea (South Korea) and United Nations forces under the leadership of the United States on the other. Each of the two Korean states that emerged from the Soviet and US occupation zones in Korea after World War II saw themselves as the only legitimate successors to the Korean Empire, annexed by Japan in 1910. After alternating border violations by both parties to the conflict, the war began on June 25, 1950 with the attack of North Korea, which sought to force the reunification of Korea militarily. Against this attack, American forces under General MacArthur provided the South Korean troops with the aid they requested.
The UN troops were initially pushed back by the North Korean troops down to a small bridgehead around Busan in the south of the Korean Peninsula. But then they launched a counter-offensive across the demarcation line to the Chinese border in the north. At the end of October 1950, strong Chinese "volunteer associations" on the side of North Korea intervened in the fighting and threw the UN troops back until the front stabilized approximately in the middle of the peninsula.
After two years of negotiations, an armistice agreement was concluded on July 27, 1953, which largely restored the status quo ante. By then, 940,000 soldiers and about three million civilians had been killed. Almost all of the country's industry was destroyed.
After the war, efforts to reunite Korea failed, as the military conflict probably helped to consolidate the division of the country. Chinese troops remained in North Korea until 1958, and US troops are still stationed in South Korea to this day. To date, no peace treaty has been concluded
