(Thank you for the tips from old people who still play games, the new year is coming soon, I wish you a happy new year!) However, the ladder that had just been erected was immediately pushed down by the Ming sergeant, and several Jiannu were pressed under the ladder.

After seeing that a large number of Jiannu escaped the musket fire and rushed to the vicinity of the city wall, Cao Yue also decisively ordered the standby support sergeants to go up to the battlements and prepare for the traditional defense.

The musketeers only had to shoot, and if all the ammunition was gone, or if the muskets were useless, they withdrew, and the defense of the city was handed over to the sergeants of the other battalions, unless the sergeants of the other battalions were exhausted, otherwise the sergeants of the musket battalion did not have to go on the field again, and used rolling stones and sassalwoods to deal with the enemy troops besieging the city.

The arrows that were fired at the top of the city slowly intensified, and from time to time the Ming soldiers were shot and fell, but most of them were only wounded, not killed. After Cao Yue took over as the commander-in-chief of Datong, he took advantage of his wealth and power to give the Datong army good equipment and armor, and their equipment and armor also saved the lives of many sergeants today.

Although the Mongols suffered heavy casualties, they did not show any signs of stopping their attack.

Because of the long-term war, after serving the Jurchens, they have also experienced a lot of siege battles, and they also have experience in siege.

In the first wave of nearly 5,000 people, almost all of the troops were killed in front of and behind Datong City, although Chahan ordered the follow-up men and horses to attack desperately, he also ordered to prepare enough turrets and shields to resist the fire of Ming muskets and bows and arrows at the head of the city.

The oar shield is a huge wooden shield, the outer layer is covered with raw cowhide, and the inner layer is supported by iron branches, which is extremely strong, and it is a defensive weapon that is blocked when blocking arrows and garrisoning before the battle array. Most of the general army has this huge shield equipment, especially when besieging the city, in order to resist the attack of the defenders on the head of the city, the arrows and the sandalwood and rolling stones, the besieging side will often use the pieces of turrets and shields as a cover, send a large number of soldiers to the city, and under the cover of other horses, they will go to the city, and continue to cover the follow-up men and horses.

The Mongols who attacked in the first wave did not use a shield, and Chahan, who was brave and unscrupulous, originally wanted to give Cao Yue a dismount with a quick attack, but he did not expect that he was almost wiped out.

The latter wave of the Mongols who attacked the city came prepared, especially the thousands of men and horses led by Chahan, the Mongols in front of them all held up the shields, and hundreds of shields formed a solid shield wall, and today's musket bullets could not penetrate the shields at all.

The current muskets do not fly fast, the range is not far, the armor-piercing ability is very poor, and they cannot penetrate the solid shield at all.

Not only musket bullets, but also lighter rolling wood stones smashed on it, and there was basically no threat.

In the second wave of attacking Mongols, after the sergeants in front were greatly wounded, the sergeants in the back were no longer in a hurry to attack, but formed several huge shield formations, and they relied on the cover of the oars and shields, slowed down the speed of the attack, and slowly moved in the direction of the city wall. The bullets fired from the musket hit the shield and were ejected, causing little damage to the Mongols hiding under the shield array.

Fortunately, the Mongols at this time did not have a good IQ, and they came up with this method after losing thousands of soldiers and horses. It was a method they were reluctant to use, as Gai lost his heroism and attacked slowly because he was hiding under his shield. Almost no sergeants could attack under the city walls, let alone try to attack the city, and the commanders under Chahan came up with this method.

Under the cover of the shield wall, the Mongols began to rush to the foot of the city wall in a steady stream, and began to build ladders and prepare to ascend the city.

The Mongol arrows also began to shoot at the city in large numbers.

Fortunately, Cao Yue already had a plan for this situation, and he knew full well that the musket bullets used in the siege of the city could not penetrate unless it was a rifled gun, and the bullets that rotated at high speed could be pierced.

The musket bullets can't penetrate, the arrows can't hurt it, and the huge shield wall can even resist the rolling stone and wood, so Cao Yue thought of another method, similar to the attack method of cluster grenades in later generations. Tie up a few wooden handles together and use the immense power of their explosion to blast the shield array apart. The power of a grenade is too small, especially a primary grenade made of black* gunpowder, which Cao Yue knows very well that must explode together in order to be powerful.

Seeing several huge shield arrays pushed near the city wall, Cao Yue decisively ordered, and while the musket continued to fire, a large number of cluster grenades were thrown. Soon, several large bundled grenade fuses were ignited, and with the joint efforts of the two sergeants, they were thrown into the shield array piled up by the Mongols outside the city.

"Boom, boom, boom ......", several bundles of grenades exploded almost at the same time, and in the feeling that the ground shook and the mountains shook, dozens of Jiannu rose into the air with the air waves and black smoke, and dozens of bombed shields also flew into the air, and a large piece of Jiannu's shield wall was lifted off in an instant, and it became incomplete. Exposed to the shield, Jiannu soon became a target for the musketeers.

The lethality of the close-range shooting was further increased, and the Mongol soldiers, who had finally rushed to the vicinity of the moat, fell one by one. Many were killed outright, and many more were wounded because of the lack of muskets, but death awaited them. Even if they are not killed by subsequent bullets, they will be trampled to death by their companions. Even if some people were lucky enough to escape the bullets and the trampling of their companions, they could not move, but they could only watch themselves bleed to death.

The cluster grenade successfully cleared the threat of the shield array, and Cao Yue's hanging heart also relaxed, and he smiled proudly at Sun Chuanting: "Old man Sun, see it, it's not just luck to be lowly!"

"Boy, there are some brains, it seems that Jiannu has no advantage to take advantage of today, they are going to retreat with heavy losses!" Sun Chuanting raised the telescope in front of him, looked at the suspected place where Duoduo was staying in the distance, and said with a smile: "Duoduo has suffered such heavy losses, he should withdraw his troops in Mingjin, unless he wants to bury all these horses under Datong City." ”

"That's right, Duoduo should be about to withdraw his troops," Cao Yue agreed with Sun Chuanting's words, "but how many men can he withdraw?" ”

But to the surprise of Cao Yue and Sun Chuanting, although the battle under the city was very tragic, the Mongols who attacked before, and the Han army that followed the attack could not attack near the city wall at all, but Duoduo did not order the retreat, and the Jiannu who attacked the city were still making fearless sacrifices one after another.

Seeing that his men and horses had suffered such heavy losses, Chahan had completely lost his mind, and he was red-eyed, and repeatedly ordered his subordinates to never take a step back, and they must attack Datong City.

Despite the dissuasion of his own soldiers, he rushed to the front and prepared to personally command the city.

At this moment, a volley of musket bullets hit, which hit Chahan and immediately fell off his horse, and then a bundle of cluster grenades was thrown near the place where he fell by a small trebuchet at the head of the city......