The Crisis of the Tumu Fortress, also known as the Tumu Crisis, or the Jisi Incident, was a border conflict between the Oirat Mongols and the Ming dynasty. On 1 September 1449, the Ming army, with a strength of half a million soldiers, suffered a crushing defeat at the hands of the much weaker Mongols. In this battle, the Mongols were able to capture the Ming emperor Yingzong.[1] This defeat was one of the biggest military failures in the Ming dynasty's three centuries of existence, and it was largely attributed to the poor leadership of the Ming army.
Ming musketeers in training formation as depicted in the Junqi Tushuo, published in 1635
After the death of the Yongle Emperor in 1424, the defense of the northern borders of the Ming dynasty began to deteriorate. Despite complaints from generals about the lack of resources, no action was taken.[3] In 1435 and 1438, some garrisons were reinforced, but the overall situation remained unchanged. Inland, only half of the supposed 2.5 million soldiers in the Weisuo garrisons were actually performing their duties. Military peasants were often exploited by officers, leading to a reliance on inadequate grain supplies from the interior. As a result, the quality of training, weapons, and equipment declined.[4] The Beijing garrison was frequently used for construction projects, such as defensive positions, but more often for the building of palaces, temples, and private residences for officers and eunuchs of the imperial palace.[5]
The defense of the northern border was primarily focused on the area between China and the steppe, as the outposts in present-day Inner Mongolia had been abandoned. However, at this time, the Great Wall had not yet been constructed and the border was only guarded by patrols between fortified cities. The defense of the northeast relied on three main fortified cities: Xuanfu, Datong, and Beijing. The fortifications of Beijing were not completed until 1445. In Xuanfu, there were 90,000 soldiers, with 35,000 ready for battle and 55,000 in training. Additionally, there were 25,000 horsemen and 9,000 firearms of various types, as well as 90,000 hand rockets.[6] Datong had a stronger cavalry force, with 35,000 horses, and was supported by 160,000 men in Beijing. The reserve consisted of garrisons stationed in northeastern China, specifically in North Zhili, Shandong, and Henan.[6]
The border patrol battalions were meant to hold off the enemy until the main forces arrived, but with Xuanfu only 180 km from Beijing, the defense system lacked depth[6] and relied on a quick and decisive response to any attack.[7]
Sino–Mongol relations
The Mongols were divided into three groups: the Uriankhai in the southeast, the Eastern Mongols (also known as Tatars) in the east, and the Oirats in the west.[8] In 1434, the leader of the Eastern Mongols, Arughtai, was defeated in battle by the Oirats, giving them control over Mongolia. Their chief, Toghon, solidified their power by marrying his daughter to the young Khan of the Eastern Mongols.[a] After Toghon's death in 1440, his son Esen inherited the title of taishi and ruled over Mongolia.[10] Esen was a more ambitious leader, launching attacks on Hami in 1443 and 1445 and ultimately conquering it in 1448. He also attempted to conquer the Mongol detachments of the Ming army in western Gansu. In the east, his power extended to the borders of Korea.[9] In Beijing, he was seen as a threat by opponents of Wang Zhen, a eunuch who was the most influential person at the imperial court in the 1440s.[5]
In their relationship with China, the Mongols were primarily interested in free trade, specifically in the exchange of horses for tea, silk, and other luxury goods. However, the Ming government imposed restrictions and regulations on trade, limiting it to a few designated border towns, with Datong being the main hub.[9] As Esen's power and influence grew, so did his need for these goods.[11] This led to a significant influx of Mongols into Datong in the late 1440s, with up to two thousand arriving each year.[9] However, the large number of armed horsemen posed a serious security concern for the Ming authorities.[9] As a result, the Ming government protested against the excessive number of incoming Mongols, causing a sharp deterioration in their relationship. In 1449, the Ming ultimately rejected the Mongols' request for goods and only provided them with a fifth of what was requested. This rejection led the Mongols to resort to force. The immediate cause of the war was the Ming's refusal to grant Esen's request for an imperial princess for his son.[11]
Crisis
Mongol invasion
A Mongol horseman. Miniature from the 15th–16th century.
In July 1449, Esen launched a large-scale invasion of China, with the Mongols advancing in three directions. Toghtoa Bukha Khan and the Uriankhai attacked Liaodong in the east, while the second Mongol army advanced on Xuanfu and the third, led by Esen himself, advanced on Datong.[7] The main objective of this campaign was to capture the fortified cities of Xuanfu and Datong, which would grant the Mongols unrestricted access to the northern regions of China.[12]
On 20 July, news of the raid reached Beijing and the emperor responded by ordering four generals and 45,000 soldiers from the Beijing garrison to advance to Datong and Xuanfu to protect the border.[13] However, on 30 July, it was reported that Esen had already attacked Datong.[14] Despite not consulting his ministers, Emperor Yingzong ordered the mobilization of the Beijing garrison on 1 August and declared his intention to personally lead a punitive expedition.[14]
Emperor Yingzong was known for his love of military parades, often organized for him by Wang Zhen.[14] His self-confidence was further bolstered by the recent successes of the Ming troops in the Luchuan–Pingmian campaigns and in suppressing the rebellion of Deng Maoqi.[11] It should also be noted that all previous Ming emperors, with the exception of Jianwen Emperor, personally led armies into battle. Therefore, Wang Zhen used this precedent to support the emperor's decision.[14]
The first to protest were Minister of War Kuang Ye (鄺埜) and his deputy Yu Qian.[b] They believed that the monarch's participation in a punitive expedition was an unacceptably risky adventure.[14] Other officials also attempted to dissuade the emperor from joining the campaign. Minister of Personnel Wang Zhi (王直) wrote a memorandum on behalf of the dissenting officials, arguing that officers were designated for the dangers of war, while the head of the dynasty and the empire, as well as the person on whom the world's attention was focused, should not expose themselves to danger. Although the emperor thanked him for his concern, he did not allow himself to be swayed from his plans.[15] The last attempt to stop the emperor was made by the a supervising secretary as the army was leaving the city. He threw himself in front of the emperor's palanquin, but was unsuccessful.[15]
On 3 August, Esen's army defeated the poorly supplied Ming army at Yanghe, which was already in Chinese territory.[16] On the same day, Emperor Yingzong appointed his younger brother Zhu Qiyu, Prince of Cheng, to oversee the administration of the capital during the campaign. Zhu Qiyu was assisted by four representatives from the most influential power groups. These included Prince Consort Commander Jiao Jing (焦敬), the son-in-law of the Hongxi Emperor, who represented the imperial family; Jin Ying, the head of the Directorate of Ceremonial and the highest-ranking eunuch in the absence of Wang Zhen; Minister Wang Zhi who led the government; and Grand Secretary Gao Gu (高穀). All major decisions were to be postponed until the emperor's return.[15]
Despite the deteriorating security situation, the emperor made a sudden decision without any prior preparations. This left the soldiers with only a few hours between 1 and 4 August to prepare for the march.[15] The emperor was accompanied by twenty experienced generals, most of whom held noble titles, and an equal number of high-ranking officials. They were also accompanied by hundreds of lower-ranking dignitaries,[13] with Wang Zhen serving as the de facto commander-in-chief.[17] While it is believed that the expedition consisted of half a million members,[13] contemporary sources suggest that the actual number was significantly smaller.[15] However, even with optimal conditions, supplying such a large army would have been difficult. The troops were hastily assembled, poorly supplied, and incompetently led, ultimately leading to disaster.[13]
Ming counterattack
The army departed from Beijing on 4 August[18] and headed towards the Juyong Pass.[16] The objective was to make a swift and brief march westward, passing through Xuanfu and reaching Datong. The plan was to conduct a rapid campaign in the steppe and then return to Beijing via the southern route. This route was chosen to avoid excessive destruction in the region along the Beijing–Xuanfu–Datong road, as the army would be passing through it twice. The return journey would take them through Yuzhou and the Zijing Pass.[17]
From the very beginning, chaos and disarray plagued the army.[15] The soldiers trudged on through relentless heavy rain.[17] After seven days, they finally reached Xuanfu, but only after being delayed by a storm. Despite pleas from many to turn back, both in Xuanfu[18] and earlier in Juyong Pass,[16] Wang Zhen urged them to press on.[18] By 12 August, some officials were already discussing the possibility of assassinating Wang Zhen and bringing the emperor back, but they lacked the courage to follow through with their plan.[16]
On 16 August, the army arrived at the battlefield at Yanghe and discovered the bodies of the fallen soldiers from the battle.[16] Two days later, on 18 August, the Emperor reached Datong. However, during the journey, more soldiers died from starvation than from skirmishes with the enemy.[18] Upon reaching Datong, Wang Zhen received reports from local commanders and information from nearby border garrisons, which convinced him that continuing the campaign into the steppe would be dangerous. As a result, the expedition was declared victorious and the army turned back on 20 August.[16] Unfortunately, the discipline of the army had already begun to deteriorate. Wang Zhen was also concerned about the impact of the army's passage on his hometown in Yuzhou (present-day Yu County, Hebei), so he insisted on returning the same way they had come.[16]
On 27 August, the returning troops arrived in Xuanfu.[16] However, just three days later on 30 August, the Mongols launched an attack on the Ming army's rear in Xuanfu, resulting in its destruction. The Mongols then proceeded to Yao'erling, where they also destroyed a newly formed rear guard of 40,000 cavalry under the command of General Zhu Yong (朱勇).[18] The following day, 31 August, the Ming army set up camp at the post station in Tumu. Despite suggestions from ministers, Wang Zhen refused to seek refuge in the nearby walled city of Huailai, which was only 10.5 km away. It is believed that Wang Zhen's reluctance was due to his desire to keep his baggage with him.[16] Unfortunately, the army faced a lack of water in Tumu, leaving the men and horses thirsty.[18]
Tumu debacle
Esen dispatched troops to block Chinese access to the river south of their camp. By the morning of 1 September, his forces had successfully surrounded the Chinese camp. Despite offers to negotiate, Wang Zhen refused and instead ordered the confused Ming army to advance towards the river. A battle ensued between the disorganized Ming army and the vanguard of the Mongol army, with Esen himself choosing not to participate.[16] Only 20,000 Mongols were involved in the battle,[19] but the hungry and thirsty Ming soldiers were unable to put up much resistance.[18] The Ming army was quickly defeated and the Mongols were able to seize a large amount of weapons and equipment, resulting in the deaths of many Chinese soldiers. Among the casualties were high-ranking officials,[16] including two dukes, two marquises, five counts, several generals, and hundreds of officials.[18] Notable figures such as the old general Zhang Fu and Grand Secretaries Cao Nai (曹鼐) and Zhang Yi (張益) were also killed.[20] After reclaiming the area, Ming troops were able to gather tens of thousands of firearms, armor, and other equipment left behind by the defeated army.[18]
During the battle, the emperor's bodyguard attempted to remove him from the fighting, but were unsuccessful. In the chaos, one of the Ming officers managed to kill Wang Zhen.[19][c] The emperor was then captured and taken to a Mongol camp near Xuanfu on 3 September.[20] Surprisingly, Esen chose not to kill him and instead decided to inform the Ming side before making a decision on what to do with him.[19]
Aftermath
Empress Dowager Sun and Empress Qian, who were leading the court, learned of the battle and the emperor's capture on the night of 2–3 September. They promptly sent a message with gifts to Esen. The eunuchs in charge of the Directorate of Ceremonial, Jin Ying and Xing An, relayed the information to the government officials. Panic spread as the Beijing garrison was left with less than 100,000 soldiers and the fate of Datong and Xuanfu was uncertain. The eunuchs urgently requested for a man of reputable character and clear thinking.[21]
Reader-in-waiting Xu Cheng,[21] a native of Suzhou known for his military strategy skills and familiarity with the border situation, suggested temporarily moving the capital to the south to keep it safe from the enemy and prevent a surprise attack. However, Minister of Rites, Hu Ying, opposed this plan and defended the Yongle Emperor's legacy as his former confidant. He argued that the tombs of the Yongle and Xuande emperors could not be abandoned and that their descendants were bound to follow the will of their ancestors.[d] Vice Minister of War Yu Qian then spoke out against the idea of moving south, stating that whoever suggested it deserved to be executed.[e] This calmed down the panicking officials, as Yu Qian was supported by leading eunuchs and Grand Secretaries Chen Xun (陳循) and Shang Lu (商輅), giving him the upper hand. However, before any action could be taken, approval from above was needed, which was given by Empress Dowager Sun with trepidation.[19] Despite the decision to stay, many officials still fled south,[15] and some even sent their families there for safety.[19]
Meanwhile, the Mongols were attempting to capitalize on their valuable plunder. They approached Xuanfu and demanded entry into the city for the emperor and his entourage, which consisted of the Mongol army. However, the defenders of the city responded by shooting at them. The Mongols then retreated to Datong. In a separate message to Beijing, the emperor requested that supplies be provided for the Mongols, hoping that this would satisfy their demands. However, the local commanders at Datong also refused to open the gates, despite the emperor's anger. They cited imperial orders as their reason for not surrendering.[12] Regional commander, Liu An, even bravely went to the Mongol camp to meet with the emperor. Eventually, several officials and officers from the city also went to meet with the emperor. However, the city was not surrendered. Liu An only handed over the local silver reserve (140,000 liang) to the emperor, who then distributed it among the Mongol chieftains.[22]
On 4 September, Minister Wang Zhi approached the empress dowager to request her consent for appointing the Prince of Cheng to govern the country. The empress dowager agreed, but limited his authority by labeling it as "special" and "temporary". Additionally, she also promoted the two-year-old Zhu Jianshen,[18] eldest son of the captured emperor, to the position of crown prince. This appointment was made on 6 September.[22]
Yu Qian took control of the political situation and used his position as the highest-ranking official in the Ministry of War to oversee defense preparations. He ensured that grain was transported from the granaries in Tongzhou, located near Beijing, where almost half of the grain stocks were stored.[f] The Prince of Cheng also supported Yu's plan to gather military units from nearby provinces and the south, as well as levies from the metropolitan area. On 7 August, Yu was appointed as Minister of War. On the same day, border commanders were warned against misusing imperial insignia and badges, and commanders in Datong (who had already followed this order) were cautioned against responding to the emperor's requests.[23]
The officials in Beijing recognized the need for a clear leader and on 15 September, they urged the Prince of Cheng to take on the role of emperor.[24] Although initially hesitant, the prince eventually ascended the throne as the Jingtai Emperor on 17 (or 23)[25] September. He declared his brother as the "emperor emeritus" (太上皇帝; Taishang Huangdi), a title that held no real power but was purely honorary.[18] Only one official objected, and he paid for his dissent with his life.[25]
In response to the threat of invasion from the Mongols, Yu Qian withdrew 80,000 soldiers from Xuanfu and other areas to defend Beijing. He also called in reserves from northern China, including transport and training units and coast guard units.[25] New commanders were appointed and defenses were organized. Meanwhile, Esen once again approached Datong, this time claiming to be defending Emperor Yingzong's right to the throne. However, his offer was rejected by the garrison at Yanghe. He then marched on Beijing with the intention of placing Emperor Yingzong on the throne. The defenders at the Jijing Pass held off the Mongol army for several days before being outnumbered. Esen finally reached Beijing on 27 October. With 220,000 men at his disposal, Yu Qian was able to fend off the 70,000 Mongol troops. After five days of fighting, the Mongols realized they did not have the strength to take the city and returned to their homeland. Following Esen's failed campaign, the Ming troops were able to drive out the remaining smaller Mongol forces from China.[26] As a result of Esen's defeat, Mongol unity began to crumble rapidly. Just a few days after his departure from Beijing, Toghtoa Bukha Khan sent an envoy with tribute to the Ming court.[27]
In the following weeks, the Mongols continued their border raids, sometimes involving numerous detachments. The Ming army, commanded from Beijing by Yu Qian, responded by strengthening the defenses of the passes, while the Ming cavalry cleared the border steppes. The operations of the Ming troops did not have significant results, but they faced difficulties in supplying their troops due to the destruction of the surrounding area.[27]
Esen then offered to release Emperor Yingzong, but the Jingtai Emperor was hesitant to accept, as he wanted to solidify his position in the palace and government before allowing his brother to return.[27] As a result, Emperor Yingzong was not able to return until September 1450, remaining in captivity for twelve and a half months. However, he was treated fairly by the Oirats and returned to China as their friend.[18] Upon his return, the Jingtai Emperor felt threatened by Emperor Yingzong and ordered him to stay in the Southern Palace within the Forbidden City, limiting his contact with the outside world. Essentially, Emperor Yingzong was under house arrest.
Consequences
Although the initial impact of losing the battle and capturing the emperor was significant, the fortified cities were able to hold their ground against the Mongols, preventing them from permanently occupying any territory. Despite the crisis, there were no territorial changes and relations between the two sides returned to their previous state after a few months.
The Mongols' main objective was not to gain territory, but rather to establish stable trade relations with China. As a result, Esen quickly established positive relations with the Ming dynasty following the battle. However, his failure to capitalize on the victory and make significant gains led to widespread criticism in Mongolia and weakened his authority. In 1453, he declared himself Khan, but was murdered just two years later.[28]
The Tumu Crisis sparked a major reorganization of Ming authorities and the military, which ultimately contributed to the relative stability of the Ming dynasty for the remainder of the 15th century.[28]
Notes
↑ Toghton was not a descendant of Genghis and therefore could not become a khan, even though he effectively ruled over Mongolia.[9][10]
↑ Both had long warned of the danger posed by the Mongols, but their requests for stronger defenses were consistently rejected.[14]
↑ Historians Denis C. Twitchett and Tilemann Grimm cautiously approach the information about Wang Zhen's killing by his own officer, stating it as "according to some reports".[20]
↑ However, the founder of the dynasty, the Hongwu Emperor, was buried in the south and the Beijing authorities remained formally "auxiliary" (xingzai) until 1441.[19]
↑ There was a precedent for Yu Qian's attitude. 450 years earlier, the then chancellor of the Song dynasty, Kou Zhun, used the same threat when the Khitan attacked the Song capital of Kaifeng.[19]
↑ Tongzhou had been a center of Mongol settlement since the time of the Yuan dynasty, and was now suspected of being in alliance with the enemy.[23]
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