Battle of Talas The Battle of Talas ( or Battle of Artlakh ) ( 怛羅斯會戰 ) ( معركة نهر طلاس ) in 751 AD was a conflict between the Arab Abbasid Caliphate and the Chinese Tang Dynasty , then under Emperor Xuanzong ( together with various other peoples and nations associated with the geographical territory involved ) for control not only of the Syr Darya region , but also a strategic area of Central Asia . The Battle of Talas marked the end of the Tang Dynasty ' s western expansion of their territory , this representing the furthest point of territorial expansion to the west by the Tang , or any prior or subsequent Chinese dynasties . Leading up to this battlefield showdown , the Tang army had proceeded further and further westward , in a series of military events during the course of which various cities and states were conquered or overthrown . Meanwhile , a new power had arisen in the region . Beginning with a revolt against the Umayyad Caliphate , largely centered in Khurasan , not too far from Talas , the rising Abbasid Caliphate decisively defeated the rival Umayyad Caliphate , at the Battle of the Zab , in 750 , which thus freed up their armies for other purposes , one of which would be to challenge the Tang expansion into the region . In July 751 , both the Tang troops and the Abbasid troops met in the valley of the Talas River , where the Tang forces were defeated . The Battle of Talas is important because of the resulting changes in the political fortunes of the rival sides , and in the region generally , not to mention the economic importance of control over this strategic region along the Silk Road . There is also a tradition that Chinese prisoners captured as the result of the battle allowed for the transference of paper - making technology to the Middle East and eventually Europe . Location . The exact location of the battle has not been confirmed but is believed to be near Taraz and Talas on the border of present day Kazakhstan and Kyrgyzstan . The Chinese name Daluosi ( 怛羅斯 , Talas ) was first seen in the account of Xuanzang . Du Huan located the city near the western drain of the Chui River . Background . Prior to the battle , there were other indirect encounters between some of the combatants , and the military might of China had been projected beyond the harsh continental climate and the dry , desolate , and difficult terrain of the Tarim Basin , much of which consists of the Taklamakan Desert , as early as the Han Dynasty , when Emperor Wu of Han sent military expeditions to seize horses which got as far as the Ferghana . Then , in 715 , Alutar , the new king of Fergana Valley , was installed with the help of the Arabs of the Umayyad Caliphate . The deposed king Ikhshid fled to Kucha ( seat of Anxi Protectorate ) , and sought Chinese intervention . The Chinese sent 10 , 000 troops under Zhang Xiaosong to Ferghana . He defeated the Arab puppet - ruler Alutar at Namangan and reinstalled Ikhshid . The inhabitants of three Sogdian cities were massacred as a result of the battle . The second encounter occurred in 717 , when Arabs were guided by the Turgesh and besieged two cities in the area of Aksu . The commander of the Chinese Protectorate General to Pacify the West , Tang Jiahui , responded using two armies , one composed of Karluk mercenaries led by Ashina Xin ( client " qaghan " of Onoq ) and another composed of Tang regulars led by Jiahui himself . In the year 750 , Abu al - ' Abbas al - Saffah ( As - Saffah ) , the founder of the Abbasid Caliphate , launched a massive rebellion ( known as the " Abbasid Revolution " ) against the incumbent Umayyad Caliphate from the province of Khurasan . After his decisive victory at the Battle of the Zab and eliminating those of the Umayyad family who failed to escape to Al - Andalus , As - Saffah sent his forces to consolidate his caliphate , including Central Asia , where his forces confronted many regional powers , including those of China ' s Tang Dynasty . Battle . The numeric quantities of the combatants involved in the Battle of Talas are not known with certainty ; however , various estimates exist . The Abbasid army ( 200 , 000 Muslim troops according to Chinese estimates , though these numbers may be greatly exaggerated ) which included contingents from their Tibetan and Uyghur allies met the combined army of 10 , 000 Tang Chinese and 20 , 000 Karluk mercenaries ( Arab records put the Chinese forces at 100 , 000 which also may be greatly exaggerated ) . In the month of July 751 , the Abbasid forces joined in combat with the Tang Chinese force ( the combined army of Tang Chinese and Karluk mercenaries ) on the banks of the Talas river . The Tang army was subjected to a devastating defeat . The Tang dynasty ' s defeat was due to the defection of Karluk mercenaries and the retreat of Ferghana allies who originally supported the Chinese . The Karluks forces composed two - thirds of the Tang army changed to the Muslim side while the battle was ongoing so that Karluk troops attacked the Tang army from close quarters and the main Abbasid forces attacked from the front so that the Tang troops were unable to hold their positions . The commander of the Tang forces , Gao Xianzhi , recognized that defeat was imminent and managed to escape with some of his Tang regulars with the help of Li Siye . Out of an estimated 10 , 000 Tang troops , only 2000 managed to return from Talas to their territory in Central Asia . Despite losing the battle , Li did inflict heavy losses on the pursuing Arab army after being reproached by Duan Xiushi . After the battle , Gao was prepared to organize another Tang army against the Arabs when the devastating An Shi Rebellion broke out in 755 . When the Tang capital was taken by rebels , all Chinese armies stationed in Central Asia were ordered back to China proper to crush the rebellion Aftermath and historical significance . Shortly after the battle of Talas , the domestic rebellion of An Lushan ( 755 – 63 ) and subsequent warlordism gave the Arabs the opportunity to further expand into Central Asia as Tang influence in the region retreated . The local Tang tributaries then switched to the authority of the Abbasids , Tibetans , or Uighurs and the introduction of Islam was thus facilitated among the Turkic peoples . Well supported by the Abbasids , the Karluks established a state that would be absorbed in the late 9th century by the Kara - Khanid Khanate . Abu al - ' Abbas al - Saffah , whose forces were known to the Chinese as the " Black Robed Ta - Shih " , spent his wealth on warfare . He died in the year 752 AD . His brother who succeeded him as the second Abbasid Caliph Abu Jafar al - Mansur ( r . 754 - 775 AD ) ( " A - p ’ uch ’ a - fo " ) helped the Chinese Emperor Suzong of Tang after he appealed for help during the An - Shi Rebellion in regaining control of his capital Chang ' an from the treacherous commander , An Lushan , or his successors in the abortive Yan Dynasty . Abu Jafar al - Mansur responded by sending 4 , 000 men who recaptured the city and were well rewarded by the Chinese Emperor . The culture of Central Asia , once a mixture of Persian , Indian , and Chinese influences , disappeared under the power struggles between the empires of the Arabs , Chinese , Turks , Tibetans , and Uyghurs . Islam grew as the dominant cultural force of Central Asia . With the decline of Central Asian Buddhism , Chinese Buddhism was now cut off from Indian Buddhism and developed into an independent religion with distinct spiritual elements . Indigenous Buddhist traditions like Pure Land Buddhism and Zen emerged in China . China became the center of East Asian Buddhism , following the Chinese Buddhist canon , as Buddhism spread to Japan and Korea from China . The battle of Talas and the rise of Islam marked the end of Buddhist Central Asia . Chinese cultural influence in Central Asia declined with the deterioration of the Tang Dynasty , and would not reappear until after the Qing conquests of the 18th century . Among the earliest historians to proclaim the importance of this battle was the great Russian historian of Muslim Central Asia , Vasily Bartold , of 20th century according to whom , " The earlier Arab historians , occupied with the narrative of events then taking place in western Asia , do not mention this battle ; but it is undoubtedly of great importance in the history of ( Western ) Turkestan as it determined the question which of the two civilizations , the Chinese or the Muslim , should predominate in the land ( of Turkestan ) . " The loss of 8 , 000 troops to the Tang empire can be compared to a troop strength of more than 500 , 000 before the Anshi rebellion . According to Bartold , for the history of the first three centuries of Islam , al - Tabari was the chief source ( survived in Ibn al Athir ' s compilation ) , which was brought down to 915 . ( Unfortunately , this important work was only compiled and published by a group of Orientalist s in 1901 . ) It is only in Athir that we find an accurate account of the conflict between the Arabs and the Chinese in 751 . Neither Tabari nor the early historical works of the Arabs which have come down to us in general make any mention of this ; however , Athir ' s statement is completely confirmed by the Chinese " History of the Tang Dynasty " . In all Arab sources , the events which occurred in the eastern part of the empire are often dealt with briefly . Another notable informant of the battle on the Muslim side was Al - Dhahabi ( 1274 – 1348 ) . Papermaking . The Battle of Talas was a key event in the history of paper — the technological transmission of the paper - making process . After the battle of Talas , knowledgeable Chinese prisoners of war were ordered to produce paper in Samarkand , or so the story goes . In fact , high quality paper had been known — and made — in Central Asia for centuries ; a letter on paper survives from the fourth century to a merchant in Samarkand . But the Islamic conquest of Central Asia in the late seventh and early eighth centuries opened up this knowledge for the first time to what became the Muslim world , and so by the year 794 AD , paper manufacturing could be found in Baghdad , modern - day Iraq . The technology of paper making was thus transmitted to and revolutionised the Islamic world , and later the European West . The paper production was a state secret , and only some places and Buddhist Monks knew the technology . Of course , the paper was transported many kilometers as a Chinese luxury product , and as it was traded , the finding of paper in several places is not proof of production , but of use . Other than the transfer of paper , there is no evidence to support a geopolitical or demographic change resulting from this battle . In fact it seems that Tang influence over Central Asia even strengthened after 751 and that by 755 , Tang power in Central Asia was at its zenith . Several of the factors after the battle had been taken note of prior to 751 . Firstly , the Karluks never in any sense remained opposed to the Chinese after the battle . In 753 , the Karluk Yabgu Dunpijia submitted under the column of Cheng Qianli and captured A - Busi , a betrayed Chinese mercenary of Tongluo ( Tiele ) chief ( who had defected earlier in 743 ) , and received his title in the court on 22 October . Furthermore , at the same time that Talas took place , the Tang also sent an army from Shibao city in Qinghai to Suyab and consolidated Chinese control over the Turgesh . Chinese expansion in Central Asia did not halt after the battle ; the Chinese commander Feng Changqing , who took over the position from Gao Xianzhi through Wang Zhengjian , virtually swept across the Kashmir region and captured Gilgit shortly two years later . Even Tashkent reestablished its vassal status in 753 , when the Tang bestowed a title to its ruler . The Chinese influence to the west of the Pamir Mountains certainly did not cease as the result of the battle ; Central Asian states under Muslim control , such as Samarkand , continued to request aid from the Tang against the Arabs in spite of Talas and hence in 754 , all nine kingdoms of Western Turkestan again sent petitions to the Tang to attack the Arabs and the Tang continued to turn down such requests as it did for decades . Ferghana , which participated in the battle earlier , in fact joined among the central Asian auxiliaries with the Chinese army under a summons and entered Gansu during An Lushan ' s revolt in 756 . Neither did the relations between the Chinese and Arabs worsen , as the Abbasids , like their predecessors ( since 652 ) , continued to send embassies to China uninterruptedly after the battle . Such visits had overall resulted in 13 diplomatic gifts between 752 and 798 . Not all Turkic tribes of the region converted to Islam after the battle either — the date of their mass - conversion to Islam was much later , in the 10th century under Musa .