Siege of Pyongyang | |||||||
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Part of the Japanese invasions of Korea (1592-1598) | |||||||
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Belligerents | |||||||
Japanese army | Ming army and Korean allies. | ||||||
Commanders and leaders | |||||||
Konishi Yukinaga So Yoshitoshi etc |
Li Rusong Yu Seong-ryong Li Rubo Song Yingchang Yi Il Wu WeiZhong etc |
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Strength | |||||||
roughly 18,000 | 30,000+ Ming soldier[1], roughly 10,000 Korean ally soldiers and several thousand Korean warrior monks [2]. | ||||||
Casualties and losses | |||||||
Approximately 8,000 | Approximately 800 deaths on the Ming side [3], unknown Korean figures. |
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The Siege of Pyongyang was a battle fought between the Ming-Korea alliance and Japanese forces during Japanese invasions of Korea.
On December 25, 1592, the Ming army assembled by the administrator Song Yingchang and led by the general Li Rusong crossed the Yalu river and after a number of small engagements with the Japanese, they met with Joseon forces and together marched towards PyongYang. According to the letters of Song Yingchang (經略復國要編; Jīng lüè fù guó yào biān) the Ming forces that crossed at the time were roughly 36,000 in strength. The two sides combined for a little over 40,000.
The Japanese forces were led by Konishi Yukinaga and the entire army of the first division. They were roughly 18,000 in strength, and had spent the past few months setting up defenses within the area. However the Japanese forces at the time were stretched thin and their supply lines were overexposed to the numerous insurgents in Korea, a problem made more complicated by the exploit of Yi Sunshin and his navy. Pyeongyang was at the very front of their deployment and was in dire supply situation.
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The allied forces arrived at Pyeongyang on 1/05 1593, at the west end of the Pyeongyang.
The Ming had previously send their diplomat Shen Weijin to start negotiation with the Japanese in the previous months, and he was present in the army as well, he was send forth again when the army reach the walls to make attempts of barter, Konishi Yukinaga realizing their own trouble with logistics, wasn't eager to fight the allied forces and agree to meet with Li.
On the next couple of days however the barter turned into chaos as Li Rusong attempted to capture the Japanese leaders send to the Ming camp by Konishi during the barter that failed, and after that the Japanese made a similar offer for Li to enter into the city and talk, Li had originally considered a plan where they would agree and storm into the city and take them by surprise, but at the last minute bailed on the plan and decided to go with a direct assault.[4]
After the barter broke down, there were some initial skirmishes at Mount Morobung and the Japanese also attempted a night raid on the Ming position that failed.[5]
Early in the morning of January 8th, Li Rusong ordered his forces to attack; their plan was a three-sided assault, with the primary focus on the west end led by Li Rusong himself.
The southern end was led by Zhu Chen Xun; his forces were mostly Ming forces disguised as Korean soldiers, this was because the Japanese did not think highly of the fighting abilities of the Koreans, to confuse the Japanese defenders, while the North end was led by Wu Weizhong and his southern troops along with the Korean Monk warriors. Their objective as to take the high grounds on Mt. Morobung just north of the city.[6]
According to Chinese accounts, the Ming forces had fired off poisonous rocket arrows early in the morning (called 毒火飛箭; dú huǒ fēi jiàn) to create a stink cloud in the city and nauseate the defenders (those incendiary arrows were mostly carrying dried excrement) before the full assault, they fired off huge volleys of incendiary rocket arrows into the city along with artillery barrage before the all out assault commenced.
The fighting was fierce on all fronts; on the north end they directly stormed the Japanese position, Wu Weizhong was hit by a bullet to the chest but managed to continue commanding.
On the southern end, the Japanese were confused by the disguised soldiers and thought that the allied forces were not going to actually attack from that side (as the reputation of the Chosen court army was quiet poor at this time). However, they were taken by surprised by the army, which was revealed to be mostly consist of Ming soldiers and attacked the Japanese's position. Still, as they were attempting to enter the city streets, the Chinese were hit by ambushes and beaten back.
The western end was where the biggest fighting occurred, Li Rusong's horse was shot from under him and briefly fell into a pit, Li Rumei (Li Rusong's brother) took an indirect arquebus shot to the helmet. Many of the allied generals climbed up the ladders with their men and fought on the walls.[7]
With his forces in trouble on all fronts, Konishi decided to pull his men back into the citadel they had recently constructed.
Encircled in the citadel, Konishi realized that the eastern end of the walls were still open, and at night they retreated out on haste and made a dash for Seoul; however as they were attempting to ford the Datung River they were hit by further allied ambushes with artilleries and took more casualties.
There are contradictions among the different sources on how the Japanese left the city; Ming sources generally state that it was part of the battle plan to leave a part of the city open so the Japanese defenders would be less inclined to fight to the death. A few Japanese sources cite that the ally forces simply would dare come near their fortifications inside the city, while Korean sources are even more confusing, Yu Seong-ryong's Jingborok stated both versions, as first he writes that the Li Rusong ordered the ally forces to not press the attack, and then later wrote that the Korean general Yi Li was punished because Li Rusong was angry that he let the Japanese force slip.[8], while others said that Li Rusong ordered them not to let the Japanese retreat.
This battle probably saw the largest use of artillery in the 16th century, as the Chinese had amassed an arsenal of 200 pieces of various types of artillery, including rocket arrows, breech-loading cannon and several large caliber "Great General" cannons (Although Song Yingchang's letter claimed that the Great Generals did not reach Pyeongyang in time as they had intended). Both armies used state of art firearms and cannons.
經略復國要編 宋應昌 著 (the collection of letters by Song YingChang)
明史 (Official history of Ming)
宣祖實錄 (the Annals of King Seonjo)
Kim, Samuel Dukhae. The Korean Monk-soldiers in the Imjin wars, Columbia University PHD 1978
Yu Seong-ryong, Jingborok.