The Battle of the Ch'ongch'on River and the beginning of the Korean War both occured in what year?
Battle of the Ch'ongch'on River: The Battle of the Ch'ongch'on River, also known as the Battle of the Ch'ongch'on () or the Second Phase Campaign Western Sector (), was a decisive battle in the Korean War, and it took place from November 25 to December 2, 1950, along the Ch'ongch'on River Valley in the northwestern part of North Korea. Korean War:  The war began on 25 June 1950 when North Korea invaded South Korea.
i don't know