North Korean leader Kim Jong-un (L) and South Korean President Moon Jae-in at their summit on April 27, 2018. (Photo: THX/VNA)

In a commentary on the Panmunjom Declaration, signed by North Korean leader Kim Jong Un and South Korean President Moon Jae-in on April 27, the media said the protection of the principle of national independence is vital to the prospect of inter-Korean relations. It added that national reunification can never be achieved if one depends on outsiders.