A command post, called jangdae in Korean, is the center from which a military commander would direct soldiers during military drills and war. In Hwaseong Fortress, there are two command posts: one in the western section and one in the eastern section.
The Eastern Command Post was where regular military training was conducted. Its nickname, "Yeonmudae" means "place for training martial arts". At the completion of the construction of Hwaseong Fortress in 1796, a large banquet was held in this courtyard for the more than 2,700 people who participated in the construction.