It was all fine, and I will talk about the smoke signal station.

It was in the Joseon dynasty.

They use smoke in daytime and fire during the nighttime.

But went the rain comes, we can't use it because the rain stop the fire.

I will talk how many fire, 

When one smoke comes out, It is normal condition.

When two smokes comes out, the enemy has appeared.

When three smokes comes out, rhe enemy is near the border.

4 Smokes are the enemy has crossed the border.

And last 5 smokes are fighting has begun.

I like to look and learn in the War memorial of Korea.

And I like to learn the history of Korea