The infiltration of the Great Cannibals in the area between the Amu Darya River and the Syr Darya River finally intensified the contradictions between the Great Food Empire and the Tang Empire. At this time, Gao Xianzhi, as the envoy of the four towns of Anxi, began an ambitious expansion plan. He slaughtered the Stone Kingdom, and Zhuhu was furious, attracting the army of the Great Food Country, and the Battle of Talas broke out.

The Battle of Talas was a battle in which the forces of the Tang Dynasty and those from the Arab Empire met in the countries of Central Asia. Talas is located in the vicinity of Taraz, Kazakhstan, west of the Green Ridge. The battle took place in July-August 646 AD. The Battle of Talas was a direct collision between the most powerful Eastern and Western empires in ancient history.

In the battle of Talas, the Tang Dynasty commander was Gao Xianzhi, the deputy general Li Siye, and the other general Duan Xiushi, and the army was 20,000 Tang in Anxi. 10,000 troops from the army of Pakhana and the Qarluqs.

The Battle of Talas dispatched more than eighty percent of the soldiers and horses of the Anxi Protectorate, and Gao Xianzhi attached great importance to the upcoming war with Arabia. Tang Dynasty. Although the army is a mixed army of horses and infantry, the infantry all have horses, and they usually use horses to walk, and they only dismount to fight when they fight, and the marching speed is relatively fast.

Datang. The military has reached a peak in the era of cold weapons in terms of equipment, quality, morale, and generals' ability. Tang Dynasty. One of the formations commonly used in military field warfare is the "Sharp Arrow Formation", which is led by brave and fearless light infantry holding a Mo sword (a double-edged long-handled broadsword), followed by infantry and cavalry assaults, and crossbowmen in the rear to shoot on their backs until they completely defeat the opponent. The attack power of the Mo knife is extremely terrifying, "like a wall" when arrayed, and the power is not reduced during hand-to-hand combat, Li Siye is a fierce general who is good at making the Mo knife. On the cavalry side, it is a combination of light and heavy cavalry, and generally uses a horse lance and a horizontal sword. Datang improved the smelting technology to make the iron war knife sharper.

Tang Dynasty. The armor of the army abandoned the armor of the Wei and Jin dynasties, and evolved into the thirteen armor of the Tang Dynasty represented by the Mingguang armor, which was lighter in weight but improved in defense. In addition Don. The army's projectile weapon, the crossbow, the crossbow of Hua Xia was unique in the world as early as the Qin and Han dynasties, and it was more mature and perfect in the Tang Dynasty, and its range and power were far from comparable to ordinary bows and arrows. In order to make up for the shortcomings of the low rate of fire of crossbows, the military formations since the Qin and Han dynasties have always had both bows and crossbows. Tang Dynasty. The army generally uses four types of crossbows, with a range of 300 paces for the Fuyuan crossbow, 230 paces for the open crossbow, 200 paces for the horn bow and 160 paces, and a single bow for 160 steps, all of which can pose a threat at different ranges. The Arab army dui is clearly quite inferior in this regard. When Gao Xianzhi besieged the city of Talas before fighting the Arab army, he also used the crossbow, which was later known as the bed crossbow. The car crossbow "twelve stones" strong crossbow, with the shaft to turn the car (i.e. the winch) to open the bow, there are seven arrows on the crossbow arm, the center of the arrow road rests a huge arrow, three feet five inches long, five inches thick, with the iron leaf as the feather, put three slightly smaller arrows on the left and right, all the arrows are fired together, the city fortress in the place is all destroyed, and the building is also upside down.

Gao Xianzhi led the Tang. The formation and equipment of the army was like this: Don. The main force of the army is a mixed cavalry force, and a standard corps includes 12,500 infantry, 5,000-6,000 cavalry, and 1,000-2,000 baggage soldiers, with a total of about 20,000 horses. Among them, among the 12,500 infantry, 7,500 are armor soldiers, mainly using Mingguang armor.

Among the 7,500 armor soldiers, there are 2,500 Mo knife soldiers, each of whom has a bow and 30 arrows hanging on their waists, and a long-handled Mo knife and a spear are crossed behind their backs. In addition, 5,000 armor soldiers also had a bow, 30 arrows, a gun, and a short-handled heavy knife.

Tang Dynasty. The armament rate of crossbows and crossbows reached 120%, and each soldier was equipped with more than three weapons. Compared with the Qin and Han armies, the firepower is 3-5 times stronger, and the impact power is also greatly improved.

In order to cooperate with the cavalry to complete the movement of the nomadic army at a fast speed and a long distance, the Don. The infantry units of the main corps of the army were mobile in chariots and horses, not on foot. When they arrived at the battlefield, they got out of the car and lined up to fight.

Tang Dynasty. The cavalry is different from the previous Northern and Southern Dynasties. During the Northern and Southern Dynasties, the extensive use of mature horse pedals made the cavalry develop from light cavalry to heavy armored cavalry in the Qin and Han dynasties, that is, men and horses were protected by heavy armor and launched impact battles on the battlefield. But Don. The main opponent of the army at that time was the nomadic light cavalry, and it was mainly a long-distance attack, so the Don. Although there are also heavy cavalry in the army, there are more light cavalry.

Tang Dynasty. The cavalry of the army reversed the heavy equipment of the previous Northern and Southern Dynasties, and its soldiers were well protected, but the war horses had very few armor pieces, only protecting the front and face. The Tang cavalry is protected by perfect armor, and its armor is similar to that of infantry. The early Xuanjia was also gradually eliminated and replaced by the Mingguang Armor. But the skirt armor of the cavalry armor, the armor of the parachants was noticeably shorter than that of the infantry, which was to facilitate movement on the horse. To compensate, the Don cavalry used belts to fasten the armor pieces on the legs and hands. Each Tang cavalry carried a spear, a round shield, a bow, 30 arrows, and a long and short Tang horizontal knife. Combat readiness is quite perfect.

Tang Dynasty. There has also been a great breakthrough in the tactical application of the army's long-range operations. The cavalry and the infantry in the chariot arrive at the battlefield together! If the enemy forces attack first, Don. The army had the same high amount of bows and crossbows as the Song army, first attacking the opponent with arrows, and then meeting the sword array, when the two armies were scuffled, the cavalry quickly disturbed the enemy's rear from the flank, and attacked the opponent on both lines! If our army takes the initiative to attack, the cavalry is mainly responsible for disturbing the enemy's rear from the flanks and rear, moving the opponent's main force, and at the same time the infantry begins to advance in a knife formation, and finally achieves encirclement and annihilation. In the history books, there are "like a wall" and "when the heir is the heir, everyone is broken" to describe the powerful power of the Tang Dao Formation!

Tang Dynasty. The tactics of the army are somewhat similar to the tactics of Alexander the Great's spear array and heavy cavalry.

Visible Don. The coordination of the military infantry cavalry is completely different from the later "two-wing iron cavalry"! Tang Dynasty. Although the cavalry is integrated with the infantry, its use in battle is completely independent of the infantry! It can be said that it was made by Don. The army has created the best example of infantry and cavalry combat! Tang Dynasty. The tactics of the army are extremely domineering in trying to annihilate everything and being invincible. This was completely different from the style of other armies who used infantry as a tool to defend themselves in front of the cavalry. This speaks volumes about Don. The army has a very high spirit of taking the initiative to attack.

At the beginning of 645 AD, Gao Xianzhi was again ordered to send an army to defeat the Cheshi kingdom that was close to Tibet, and captured its king Bert Bu.

These two difficult expeditions allowed Gao Xianzhi to gain great prestige in the Western Regions, and also marked the culmination of Tang expansion in Central Asia. At this time, the Tang Dynasty had become the occupant of the Tarim region, the Ili River valley and the Issyk-Kul region and the suzerainty of Tashkent, he controlled the Pamir valley region, became the protector of the Tocharian region, Kabul and Kashmir, and Gao Xianzhi was like the governor of the Tang Dynasty in Central Asia.

Around the same time, there was a revolution in the Arab world, and the Abbasids replaced the Umayyad dynasty (the banner was still white). After initially solving the problems in Tibet, Gao Xianzhi planned to take advantage of this once-in-a-lifetime opportunity of the Great Eclipse Dynasty and the Hezhong Rebellion to cut off the wings of the Great Eclipse and gradually restore the Tang Dynasty's sovereignty over the areas outside the Ling. So a small country in the Western Regions called Stone Country fell victim.

In 645 A.D., Tang Anxi Jiedu made Gao Xianzhi lead the army to conscript on the grounds that the Western Regions vassal state Shiguo "had no courtesy", and Shiguo asked to surrender, and Gao Xianzhi promised to reconcile. Soon, Gao Xianzhi broke his promise, captured and bloodied the city of Shiguo, took away the men, looted the property, and captured the king of Shiguo.

At this time, Gao Xianzhi reached the peak of his career. The prince of Shi, who had escaped by chance, appealed to the Abbasids of the Great Eclipse (Arab Empire) for help. The Great Food reinforcements planned to attack the four towns of the Western Regions of the Tang Dynasty, and Gao Xianzhi took the initiative to attack the Great Food. Gao Xianzhi led the Tang Dynasty coalition army to a long-distance attack, penetrating more than 700 miles, and finally encountered the Great Food Army Dui in Talas. For the Tang dynasty to establish hegemony in Central Asia, it had to defeat the Arabs, and the Arabs had to defeat the Tang challenge if they were to fully control Central Asia.

In 646 A.D., Gao Xianzhi led the army from Anxi, after a three-month long journey over the green mountains, across the desert, Gao Xianzhi arrived at the city of Talas, a famous city in Central Asia, in July, where thousands of Arab troops were already stationed first. The army had no choice but to begin the siege of the city of Talas.

As soon as the Arabs received news of the attack on Gao Xianzhi, Abu Muslim, the governor of the East in Basra, ordered the general Saeed ibn Humed to lead thousands of his troops to garrison the city of Talas to strengthen the defense and buy time for the army to assemble. Abu Muslim rushed to Samarkand with 10,000 men to build fortifications to prepare for the big battle, Ziyad and another general, Abda 'ud Khalid bin Ibrahim al-Zuhli, gathered 200,000 troops stationed in the river and quickly rushed to Talas City. Army, the mercenaries of the Qarlu Division, who were on guard on the perimeter, suddenly fled when they saw that something was wrong, causing the Don. The army was in chaos. Qarluq's behavior in the Don. The army seemed to be a complete betrayal, and the Arab coalition took the opportunity to send heavy cavalry to assault the Don. The center of the military camp, the Tang who fought for days. The army could no longer support it under the internal and external attacks, and finally collapsed, and Gao Xianzhi led thousands of people to escape under the cover of night.

Li Siye and Duan Xiushi gathered their stragglers and fled to Anxi, but on the way, it happened that the Bahana soldiers in the Chinese coalition army also fled here, causing the soldiers and horses to be crowded and blocked the road. Li Siye was afraid that the Arab pursuers would be approaching, so he did not hesitate to fight the allies, wielding a big stick to kill more than 100 Bakhana soldiers who also belonged to the Tang Dynasty coalition army. The army was able to pass. Previously, Li Siye had also persuaded Gao Xianzhi to abandon the army and flee, but was reprimanded by Duan Xiushi as "running for fear of the enemy, not brave; lest you fall into the crowd, and you are not benevolent." After collecting the remnants of the army, Gao Xianzhi was not reconciled, and still wanted to carry out a counterattack, but finally gave up under the persuasion of Li Siye and others. In the end, Gao Xianzhi had to lead the remnants of the army to flee to Anxi.

Tang Dynasty. In the face of the 200,000 Arab coalition troops, the army calmly responded to the battle, causing heavy losses to the Arab coalition forces, with more than 70,000 casualties, and about 10,000 of the 20,000 elite troops in Anxi, of which nearly half were killed and captured, but thousands of people were still able to survive. The Arabs, preoccupied with quelling the rebellion and satisfied with the preservation of Central Asia, were unable to expand further.

After the Battle of Talas, the Tang of Anxi Protectorate. The elite of the army was lost.

The Central Asian states, which had originally submitted to the Tang Dynasty, turned to the Abbasids, the Arab eclipse empire.