Wars in Goguryo and its Cavalry Soldier Strateg can be divided into two phases. Goguryo-Huhan wars and in Goguryo-Jowi wars. Goguryo responded to Huhan's 'Fast Attack, Quick Win' with 'Castle Keeping'. It is the strategy to focus on defense until the enemy's retreat and chase them with cavalry soldiers when the enemy retreats. The wars between Goguryo and Jowi wars Goguryo killed 3,000 Wi soldiers with 20,000 cavalry soldiers, and killed or captured 3,000 soldiers in Yangmaekjigok. Although King Dongcheon chased them with 5,000 cavalry soldiers Gwangugeom defeated Goguryo cavalry soldiers by implementing battle arrays and attacked for ambush with archeries.In the second war, Gwangugeom chased King Dongcheon after winning Hwando Castle in October. King Dongcheon met the biggest crisis in Jukryeong. Miru delayed the chasing with a death defying corps with cavalry soldiers and Yuyu killed the enemy officer. Thanks to those two patriots Goguryo could defeat Wi soldiers. Additionally, they had plenty of food. We could confirm that the 'Dongbukgongjeong' project was highly distorted to include Goguryo in Chinese History through the differentiation of cavalry soldiers between Goguryo and China.
Jeonyeon was the first regime founded by Seonbijok. From the tactical aspect, it meant that the main force switched from chariots pulled by horses to cavalry riding the horses. Moyonghwang of Jeonyeon invaded Koguryo in 342. At that time, Koguryo could be reached through the plane northern route or through the rugged narrow southern route. Moyounghwangdeployed his main force in the southern route defended by 15,000 weak soldiers rather than the northern route guarded by 50,000 elite troops, and took Hwando-seong. Moyongseong, the king of Huyeon attacked Koguryo in 399 and fell Sin-seong and Namso-seong. The main reason for the defect of Koguryo's army was that Sin-seong was in an open land where the cavalry and chariot units carried out united operations. The Sui Dynasty invaded Koguryo four times. Outnumbered, the Koguryo army responded through defensive strategies behind the wall. The first confrontation was at Ogol-seong. At that time, Koguryo army attached Sui's military supply units that transported munitions. In addition General Euljimundeok's won the battle through an ambush strategy.
Koryo’s Wars against Georan were three wars in 993, 1010 and 1014 and Koryo won all of them. Because the Bongsan Battle was fought in an open field, Georan cavalry, which was free in advancing and retreating, defeated the Koryo force. So Son‐nyeong in Georan crossed the Cheongcheon River and attacked Anyungjin. In the Samsuchae Battle, a force of 200,000 led by King Seongjong of Koryo collided with 300,000 soldiers under the command of Gang Jo in Koryo. Gang Jo’s force with sword chariots at the head was predominant at the beginning of the battle but, as it was neglectful of strategies, the army was defeated by the surprise attack of a cavalry raiders led by Yayulbunno. In the Samgyocheon Battle, General Gang Gam‐chan dammed off the flow of the Samgyo River, ambushed 12,000 cavalry soldiers on the opposite side of the river, and burst the dam when the Georan force was going to cross the Samgyo River. This tactic ended up in a sweeping victory. In the Geumgyoyeok Battle, Gang Min‐cheom and Jo Won beat off Georan forces.
Castle Keeping' is on the torched to Koryo from Goguryo. But the strategy change from 'Castle Keeping' to 'Fast Attack, Quick Win' when attacked 여진 in the early years of the Joseon dynasty. The return to 'Castle keeping' at the time of the Japanese Invasion of Korea. we could confirm that Hyeong Battle of Kwon-Ryule