Great Wall of Koryo

The Great Wall of Koryo was the important military facility for defending the northern part of the country.

The building of great wall of a thousand ri was aimed to protect the sovereignty of the country and nation from the invasion by foreign aggressors by setting up more durable and durable defensive facilities in the northern part of the country, as the aggressor forces in the north were constantly watching for an opportunity of aggression.

It was built with either stone or earth to suit the topography of the area where the walls passed. Outside building method was adopted mainly in mountainous areas, and double sides’ building method was adopted in the plain areas. The walls in the mountain areas were built along the high and steep peaks and ridges with an elevation of 830-930 m above sea level.

It was also noteworthy that large rivers had been used effectively to enhance the defensive power of walls. In some places, the walls were built on high cliffs and steep hills by the riverbanks and, and the logs were driven into the water in order to prevent the passage of ships in the legs of the rivers or lakes where the walls crossed.