Tactics of emptying the field and defending the fortress

This tactics occupies an important place in the history of our ancestors’ anti-aggression war including Koguryo.

It is aimed at leaving the villages and fields free from a grain and a single amount of water and defending inside the castle, so that the aggressors are forced to be driven out of the country, suffering from severe hunger and cold.

The widespread use of this tactics was due to the fact that there were natural and geographical conditions in many mountainous and rugged areas where strong defensive castle could be built.

The one which was conducted by the proposal of the minister of State Myongnimdapbu when the great troops of the Later Han dynasty invaded in 172 is a typical example of them.