Six years ago, on April 27, 2018, then-South Korean President Moon Jae-in and North Korean leader Kim Jong-un met on the South Korean side of the Joint Security Area. This historic meeting was the third inter-Korean summit and the first in 11 years. Notably, it was the first time since 1953 at the end of the Korean War that a North Korean leader stepped onto South Korean soil. President Moon reciprocated by briefly crossing into North Korean territory.