The Mongol army was not the Western Liao army, and it had always adopted the method of "feeding the war with war", and there was no extra food for the prisoners of war to eat, because too many prisoners of war would drag down the mobility and flexibility of the Mongolian cavalry's group combat and slow down the speed of the attack.

Genghis Khan ordered all the tribes to capture each city, except for some craftsmen and those who took the initiative to surrender, the rest of the useless Khorezmian people were not left, and they were all killed, and the military policy of slaughtering and robbing the city was implemented.

On the eastern border of the Khorezm kingdom, there were important military towns such as Sadara, Bukhwaram, Samalgan, and Yulong Jiechi, all of which were located between the Syr Darya and Amu Darya Daryas.

The Mongols had to adopt the tactics of breaking through each other, cutting off their ties with each other and preventing the enemy from supporting each other, and the enemy's absolute superiority in numbers was not fatal. These cities were impregnable, and the first Mongol artillery and engineer battalions had no actual combat experience.

It is an ancient city in Central Asia in the medieval era, 500 miles away from Kuqa and bordering the Kipchak steppe in the north. It was a necessary route for Eastern merchants from the Western Regions to the Volga River and the Eastern Roman Empire.

The governor was not as foolish as his king Mahamat, who underestimated the strength of the Mongol cavalry, believing that by killing all the caravans and looting the goods, he would make a windfall and the matter would be over. But he never thought about who Genghis Khan was. The leader of the God of War family, if others respect him for a foot, he will respect others. To humiliate his men, to kill them, was a serious provocation to the Mongol Empire.

News came from the front that Genghis Khan led 200,000 Mongolian cavalry to the west, and the first thing he said was to destroy the city of Sadhara and capture the generals who defended the city. It was also difficult to hear it, he was extremely nervous and panicked, and hurriedly gave the treasures and strange goods stolen from the Mongolian caravan to King Mahamat and the Empress Dowager Khan Kedun respectively. It was difficult for him to leave a single one, so he wanted to pull the "unjust boss" Mahamat into the water together, and asked the central government to send troops to reinforce the city of Rakara, so as to deal with the Mongol army under the city.

At the same time, King Mahamat learned that the Mongol Empire was moving against Central Asia, and he could not escape the blame. Receiving money from others and eliminating disasters for others, Mahamat still understands this. After receiving the goods, he did not hesitate to agree to the request that was difficult to come by, and Mahamat first mobilized 50,000 infantry and cavalry, and quickly drove to the city of Sadara.

For the sake of safety, Mahamat sent an additional general, Kharata Hashar, to send only 10,000 horses to the city, further strengthening the military defense force in this area.

Genghis Khan sent two emissaries to Samarkand, the new capital of Khorezm, and issued a declaration of war to King Mahamat, condemning him for violating the commercial and trade agreement and the peaceful coexistence agreement concluded between the two countries. Mahamat was a stunned young man, thinking to himself, how much storm can Genghis Khan set off in his own territory, isn't it 200,000 horses? His own army of 400,000 is twice the size of the Mongol army, what is there to fear?

Mahamat was furious, tore up the challenge on the spot, and ordered the two envoys to be driven out of the palace gate: "Go back and tell Temujin that it is unknown who will kill the deer, and this king has been waiting for this day for three years!" Get out, get out of the way, and if you don't get out, I'll cut off your heads!" ”

Perhaps he would never have thought that Genghis Khan had also written a letter and sent it to his mother, Bald Erhan. In a letter to Baldhan, Genghis Khan succeeded in implementing a divisive plan: "You and your son are often in conflict with political and personnel affairs. We have no intention of attacking your dwelling place, the Jade Dragon Jechi, and when I have completed the conquest of Khorezm, I will dedicate it to you as a rich and powerful Khorasan. ”

Bald Erhan did not reply, but Genghis Khan was sure that the Empress Dowager Khorezm, who was bent on her mother's family, would not lend a helping hand to Mahamat. This was also proved by later facts, and Genghis Khan was far-sighted.

The 70,000 men and horses of the first army led by Ogedai and Chagatai approached the city of Tatara, and artillery and sappers assisted in the siege. The whole army dispersed, surrounded the three layers inside and three layers outside the city, and it was impossible to escape from it.

Yang Guangye and Totour stood at the front of the line, the two of them were more anxious than Wokotai to catch it, and it was difficult for Yang Guangye to shout: "It's also difficult to get out, you butcher and robber, one person does things and one person does it!" My Great Mongolia is on the orders of Allah to persuade you to surrender, obediently hand over the city, and do not harm the innocent! ”

Seeing Yang Guangye, he couldn't help but be surprised, and thought: "Didn't Genghis Khan's son-in-law Mu Huayang (Yang Guangye) be killed and thrown in the Gobi Desert to feed the wolves?" I didn't have dazzles, did I? He rubbed his eyes, there was no mistake, the Mongolian general who shouted still had a stick pinned to his waist to beat the dog, it was Mu Huayang who was tortured by him.

It was also difficult to come out of his spirits suddenly, and said proudly: "Mu Huayang, you are a bad seed, my subordinates are defeated, I really regret not killing you with my own hands!" If you have a kind, come into the city and fetch my head, and I will wait for you! ”

As soon as the word humiliation was mentioned, Yang Guangye's eyes flashed back to the scene of the caravan being slaughtered, and for a moment he was angry, and he immediately used his strength to regulate his breath: "It's also difficult to get out, I'll give you one last chance, surrender quickly!" Once the war starts, begging for reconciliation or surrendering after defeat, we will not give you and your people any chance! ”

"I will never be captured, hundreds of thousands of soldiers and civilians are ready to live and die with the city! If you're not afraid of death, just let the horse come! It was difficult to finish speaking, standing at the head of the city and putting a cold arrow, which shot at Yang Guangye at great speed, the distance was too far to reach!

It was also difficult to be annoyed and angry, so he changed his bow and fired the arrow again, this time the range was enough, but Yang Guangye only raised his hand slightly, and grabbed the arrow body that was speeding with his bare hands. Yang Guangye ordered the troops to retreat to a safe area as soon as possible, and it was difficult to find out that they would not surrender easily, and they would die to the end.

Totoul said, "General, do you want to fire a cannon and teach this guy who doesn't know how to live or die?" ”

Yang Guangye hesitated for a minute and began to order: "Okay! ”

"Artillerymen, the first squad is ready to shoot!" 10 cannons were fired at the same time, and the shells flew towards the city, hitting the lookout on the city tower, killing and wounding many soldiers, and they were so frightened that they quickly fled off the tower. It was the first time he had ever seen such a powerful artillery, and the huge explosion was like a thunderbolt on a sunny day, and he couldn't help but break out in a cold sweat on his head.

After a burst of heavy artillery fire, the Mongol death squads crossed the moat under the cover of artillery fire and bows and arrows, and began to attack the city from four directions. It was also difficult to rely on the large number of people, and ordered the defenders to smash the daredevils who rushed to the city with rolling logs and bricks. The follow-up troops were still in the moat, and were shot in the river by a dense network of random arrows.

Seeing these heroic soldiers fall in a pool of blood one by one, they can't be sent to death in vain! Ogedei's heart was dripping with blood, and the order sounded the horn of retreat, and the attack stopped.

In the first round of the battle, the two sides suffered casualties on each other, because the outer city of the city was built of huge stones, the damage caused by artillery fire was not large, and it was difficult to organize migrant workers and soldiers to repair the outer city quickly. That night, he ordered his soldiers to step up patrols and surveillance to prevent a sneak attack by the Mongolian army outside the city.

A temporary emergency military meeting was held in Ögedei, and the generals of more than 1,000 households gathered in their tents to discuss how to attack the city. Everyone bowed their heads and remained silent, and they were frustrated in the first siege, and they felt very uncomfortable.

Yang Guangye looked around, these generals were all experienced in a hundred battles, and they couldn't talk about it, he said very cautiously: "You don't have to be depressed. It's all my fault for the wrong command. The sharp weapon in the cannon is used by both offensive and defensive divisions. It should be heavy, and it should be light. The enemy has no artillery, and the enemy has no enemy, which is the advantage of the Great Mongolian Army. To kill and injure the enemy's commanders, you must use long artillery. ”

Totour didn't quite understand what Yang Guangye said: "Master Horse, is it good to be popular?" I don't understand. ”

Yang Guangye took a sip of milk tea and continued: "The fortifications in the city are extremely strong, and the grain storage is sufficient, but most of the buildings in the city are wooden and flammable. We have a limited number of shells, so we can't waste them at will, and we can give full play to the role of firearms, drop rockets and arrows into the city, and burn their food, grass and weapons......"

Wo Kotai disagreed, and asked, "The city is so high, firearms can't enter at all." What do you have to do? ”

Yang Guangye continued: "Surround but not fight, clear the surrounding military forces, and cut off all ties between the surrounding and the periphery. ”

Chagatai was puzzled: "We don't have enough food, winter is coming soon, and we can't withstand a war of attrition." ”

Ogedai said, "Didn't Father Khan say that if he didn't, he would go and rob." The Khorezm herders, who are not protected by the army, occupy the fertile water and grass, and we can kill them all. ”

Chagatai said; "Brother-in-law, don't go around the bend, tell me how to enclose the law?"

Yang Guangye said: "Second brother and third brother, our army's reserve is divided into two groups, one group is ready to counter the breakout, and the other group joins my engineer battalion, cutting trees, digging soil, moving stones to cast earth buildings, and the earth buildings are built, and our army can clearly monitor the movements of the enemy troops from the watchtower, and advance step by step......

Chagatai shot a few times on the march: "Good idea! If your brother-in-law has a way, let's do it according to you! ”

As a result, nearly 10,000 knights joined the ranks of the engineer battalion and worked day and night to build fortifications. In less than a month, more than 20 tall and sturdy earthen towers rose from the ground, greatly surpassing the head of the city.

Therefore, the Mongolian army was able to condescend and monitor the movements of the defenders in the city around the clock, which caused great psychological pressure on Yiyan. Almost at the same time, the Mongol cavalry carried out a sweep through the small towns on the outskirts, killing almost all the inhabitants and creating a large area of no man's land, while Mahamat's reinforcements were intercepted on the way to the city of Sadara.