The memorial of korea is builded becuse they want to introduce the old days war and the skill of the old days. from there I had the impression it left a sprinkler is daechop. Daecheop live in the koguryo . Euljimundeok daecheop leaded and he led to victory. He made sui army tired and he disconnect the food propagation so the sui china can't eat and he make angry and he make them to follow. when they aproched to the sualsu river they open the dem. The sui china's army are almost drown. next I was intoruduced of the somke signal station the somke is be used at the day time and the fire is be used at night it was very useful to go there we can kown many war and some science in there.  It give me a deep impression.