Question: Who was ordered to force a Tibetan assault into the place of birth of Liu Tianyou?

full_context: Document 1: Sino-Tibetan relations during the Ming dynasty: Patricia Ebrey writes that Tibet, like Joseon Korea and other neighboring states to the Ming, settled for its tributary status while there were no troops or governors of Ming China stationed in its territory. Laird writes that "after the Mongol troops left Tibet, no Ming troops replaced them." Wang and Nyima state that, despite the fact that the Ming refrained from sending troops to subdue Tibet and refrained from garrisoning Ming troops there, these measures were unnecessary so long as the Ming court upheld close ties with Tibetan vassals and their forces. However, there were instances in the 14th century when the Hongwu Emperor did use military force to quell unrest in Tibet. John D. Langlois writes that there was unrest in Tibet and western Sichuan, which the Marquis Mu Ying (沐英) was commissioned to quell in November 1378 after he established a Taozhou garrison in Gansu. Langlois notes that by October 1379, Mu Ying had allegedly captured 30,000 Tibetan prisoners and 200,000 domesticated animals. Yet invasion went both ways; the Ming general Qu Neng, under the command of Lan Yu, was ordered to repel a Tibetan assault into Sichuan in 1390.
Document 2: Lan Xing: Lan Xing (; born 10 December 1990 in Sichuan) is a Chinese rifle shooter. He competed in the 50 m rifle three positions event at the 2012 Summer Olympics, where he placed 29th.
Document 3: Sino-Tibetan relations during the Ming dynasty: The Ming initiated sporadic armed intervention in Tibet during the 14th century, but did not garrison permanent troops there. At times the Tibetans also used armed resistance against Ming forays. The Wanli Emperor (r. 1572–1620) made attempts to reestablish Sino-Tibetan relations after the Mongol-Tibetan alliance initiated in 1578, which affected the foreign policy of the subsequent Qing dynasty (1644–1912) of China in their support for the Dalai Lama of the Gelug school. By the late 16th century, the Mongols were successful armed protectors of the Gelug Dalai Lama, after increasing their presence in the Amdo region. This culminated in Güshi Khan's (1582–1655) conquest of Tibet from 1637–1642 and the establishment of the Ganden Phodrang regime by the 5th Dalai Lama with his help.
Document 4: Sino-Tibetan relations during the Ming dynasty: The late Turrell V. Wylie, a former professor of the University of Washington, and Li Tieh-tseng argue that the reliability of the heavily censored History of Ming as a credible source on Sino-Tibetan relations is questionable, in the light of modern scholarship. Other historians also assert that these Ming titles were nominal and did not actually confer the authority that the earlier Yuan titles had. Van Praag writes that the "numerous economically motivated Tibetan missions to the Ming Court are referred to as 'tributary missions' in the Ming Shih." Van Praag writes that these "tributary missions" were simply prompted by China's need for horses from Tibet, since a viable horse market in Mongol lands was closed as a result of incessant conflict. Morris Rossabi also writes that "Tibet, which had extensive contacts with China during the Yuan, scarcely had diplomatic relations with the Ming."
Document 5: Sino-Tibetan relations during the Ming dynasty: Wang and Nyima argue that the Ming emperor sent edicts to Tibet twice in the second year of the Ming dynasty, and demonstrated that he viewed Tibet as a significant region to pacify by urging various Tibetan tribes to submit to the authority of the Ming court. They note that at the same time, the Mongol Prince Punala, who had inherited his position as ruler of areas of Tibet, went to Nanjing in 1371 to pay tribute and show his allegiance to the Ming court, bringing with him the seal of authority issued by the Yuan court. They also state that since successors of lamas granted the title of "prince" had to travel to the Ming court to renew this title, and since lamas called themselves princes, the Ming court therefore had "full sovereignty over Tibet." They state that the Ming dynasty, by issuing imperial edicts to invite ex-Yuan officials to the court for official positions in the early years of its founding, won submission from ex-Yuan religious and administrative leaders in the Tibetan areas, and thereby incorporated Tibetan areas into the rule of the Ming court. Thus, they conclude, the Ming court won the power to rule Tibetan areas formerly under the rule of the Yuan dynasty.
Document 6: Sino-Tibetan relations during the Ming dynasty: Kolmaš writes that, as the Mongol presence in Tibet increased, culminating in the conquest of Tibet by a Mongol leader in 1642, the Ming emperors "viewed with apparent unconcern these developments in Tibet." He adds that the Ming court's lack of concern for Tibet was one of the reasons why the Mongols pounced on the chance to reclaim their old vassal of Tibet and "fill once more the political vacuum in that country." On the mass Mongol conversion to Tibetan Buddhism under Altan Khan, Laird writes that "the Chinese watched these developments with interest, though few Chinese ever became devout Tibetan Buddhists."
Document 7: Sino-Tibetan relations during the Ming dynasty: Discussions of strategy in the mid Ming dynasty focused primarily on recovery of the Ordos region, which the Mongols used as a rallying base to stage raids into Ming China. Norbu states that the Ming dynasty, preoccupied with the Mongol threat to the north, could not spare additional armed forces to enforce or back up their claim of sovereignty over Tibet; instead, they relied on "Confucian instruments of tribute relations" of heaping unlimited number of titles and gifts on Tibetan lamas through acts of diplomacy. Sperling states that the delicate relationship between the Ming and Tibet was "the last time a united China had to deal with an independent Tibet," that there was a potential for armed conflict at their borders, and that the ultimate goal of Ming foreign policy with Tibet was not subjugation but "avoidance of any kind of Tibetan threat." P. Christiaan Klieger argues that the Ming court's patronage of high Tibetan lamas "was designed to help stabilize border regions and protect trade routes."
Document 8: Lin Sang: Lin represented China at the 2004 Summer Olympics. She placed 11th in the women's individual ranking round with a 72-arrow score of 647. In the first round of elimination, she faced 54th-ranked Tshering Chhoden of Bhutan. In a major upset, Lin lost 159-156 in the 18-arrow match, placing only 36th overall in women's individual archery.
Document 9: Du Li: Du Li competed in the 2004 Summer Olympics, where she won the gold medal in the women's 10 metre air rifle competition. She has achieved the maximum 400 in this event twice (2003 and 2006). She was unable to defend that title in the 2008 Summer Olympics, losing to Kateřina Emmons on August 9, 2008, and finishing 5th in the 2008 Summer Olympics. However, she fought back to win a gold medal in the women's 50 metre rifle three positions competition, setting a new Olympic record in the process.
Document 10: Liao Hui (weightlifter): In 2007 at the 6th Chinese City Games he broke two junior world records and won gold in the 69 kg class. At the 2008 Summer Olympics in Beijing he won the gold medal in the 69 kg class with a total of 348 kg. In 2009 and 2013 he won the World Weightlifting Championships. He also won the 2010 World Weightlifting Championships before being retroactively disqualified for performance-enhancing drug use the following year.
Document 11: Sino-Tibetan relations during the Ming dynasty: Shih-Shan Henry Tsai writes that the Yongle Emperor sent his eunuch Yang Sanbao into Tibet in 1413 to gain the allegiance of various Tibetan princes, while the Yongle Emperor paid a small fortune in return gifts for tributes in order to maintain the loyalty of neighboring vassal states such as Nepal and Tibet. However, Van Praag states that Tibetan rulers upheld their own separate relations with the kingdoms of Nepal and Kashmir, and at times "engaged in armed confrontation with them."
Document 12: Zhu Qinan: Zhu Qinan (; born November 15, 1984 in Wenzhou, Zhejiang) is a male Chinese sport shooter. He won the gold medal at the 2004 Athens Olympics in the Men's 10 m Air Rifle event and a silver medal at the 2008 Beijing Olympics in the Men's 10 m Air Rifle event. Zhu currently is studying at Zhejiang University.
Document 13: Ronjan Sodhi: Ronjan Sodhi (born 23 October 1979 in Ferozepur, Punjab, India) is an Indian Double trap shooter. He won two silver medals at the 2010 Commonwealth Games and a gold medal at the 2010 Asian Games. In 2011, he became first Indian to successfully defend a World Cup title. He is also a recipient of the Arjuna Award and Rajiv Gandhi Khel Ratna award (2013).
Document 14: Liu Tianyou: Liu Tianyou, (born 1982 in Sichuan) is a male Chinese sport shooter. He won the gold medal at the 2006 Asian Games in the Men's 10 m Air Rifle event.
Document 15: Sino-Tibetan relations during the Ming dynasty: Laird writes that the Ming appointed titles to eastern Tibetan princes, and that "these alliances with eastern Tibetan principalities are the evidence China now produces for its assertion that the Ming ruled Tibet," despite the fact that the Ming did not send an army to replace the Mongols after they left Tibet. Yiu Yung-chin states that the furthest western extent of the Ming dynasty's territory was Gansu, Sichuan, and Yunnan while "the Ming did not possess Tibet."
ground_truth: Ming general Qu Neng
sub_queries: Liu Tianyou >> place of birth Answer: Sichuan
Who was ordered to force a Tibetan assault into Sichuan ? Answer: Ming general Qu Neng