Forgetting the actual origination of a memory is called source amnesia.
The result of the Korean War, after years of negotiations, was to sign an armistice between the two adversaries (North and South Korea) on July 27, 1953. In the armistice they drew a new boundary, near the 38th parallel, where the border was located before the war, although it gave South Korea an extra 1,500 square miles of territory.
