Answer:
The Korean War (1950-1953) began when the North Korean Communist army crossed the 38th Parallel and invaded non-Communist South Korea. As Kim Il-sung's North Korean army, armed with Soviet tanks, quickly overran South Korea, the United States came to South Korea's aid. This Chinese army attacked the US/UN/ROK forces.
Korean reunification refers to the potential reunification of North Korea and South Korea into a single Korean sovereign state. The process towards reunification was started by the June 15th North–South Joint Declaration in June 2000, and was reaffirmed by the Panmunjom Declaration for Peace, Prosperity and Unification of the Korean Peninsula in April 2018, and the joint statement of the United States President Donald Trump and North Korean Supreme Leader Kim Jong-un at the Singapore Summit in June 2018. In the Panmunjom Declaration, the two countries agreed to work towards a peaceful reunification of Korea in the future.
Prior to World War I and Japan's annexation of Korea (1910-1945), all of Korea had been unified as a single state for centuries, known previously as the Goryeo and Joseon dynasties, and the last unified state, the Korean Empire. After World War II in 1945 and beginning in the Cold War (1947-1991), Korea was divided into two countries along the 38th parallel (now the Korean Demilitarized Zone) in 1948. North Korea was administered by the Soviet Union in the years immediately following the war, with South Korea being managed by the United States. In 1950, North Korea invaded the South, beginning the Korean War, which ended in stalemate in 1953. Even after the end of the Korean War, reunification proved a challenge as the two countries became increasingly diverged at a steady pace. However, in the late 2010s, relations between North and South Korea warmed somewhat, beginning with North Korea's participation at the 2018 Winter Olympics in Pyeongchang County, Gangwon Province, South Korea. In 2019, South Korean president Moon Jae-in proposed reunification of the two divided states in the Korean peninsula by 2045.
Step-by-step explanation:
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