Although the process of upgrading Changqiu Village to Changqiu Fort had twists and turns, it was also smooth. During the initial period of the reinforcement project, small groups of Mongolian army rangers were either driven or hunted due to the increased vigilance of the special battalion in the perimeter. It was the scouts of the New Annexes who discovered that Changqiu Village was building a large number of buildings, and they crossed the Thunderbolt cordons through remote paths. Changqiu Village is located at the intersection of Pengshan, Danling and Pujiang, although the road is not easy to walk due to the hilly terrain, but there are also trails that extend in all directions. It's so hard to monitor all of these trails.

If the Changqiu Fort is built, the Thunderbolt army can attack Pengshan and Meizhou City by land and water. Naturally, the Mongolian army would not sit idly by and watch the Thunderbolt army build a fort, so they left the army of Meizhou City to guard against Yu Xing, and did their best to defend the army of Pengshan City. In this attack on Changqiu Village, the Mongolian army dispatched 400 cavalry and 1,000 new annexed troops, as well as 800 people who transported heavy baggage. Led by the Mongol general Khudu, they prepared to destroy the fortress while it was still unfinished.

The Mongolian army's ranks could not see the end at a glance on the winding mountain road, and the momentum was quite huge. It's just that this word is a long snake formation, but it makes the harassment tactics of the special battalion more useful. Tactics such as laying mines, cold guns and cannons, and throwing grenades from the top of their heads made the Mongolian army terrified all the way, and they were repeatedly awakened by the sound of explosions when they camped at night. Both officers and soldiers of the Mongolian army were tormented by this kind of guerrilla warfare, but they were helpless. In the eyes of the Mongol army, these Thunderbolt soldiers were dragons, and they could only be vaguely seen walking through the forests on the ridge and mountainside. Rushing to their hiding place out of breath, there was no one to be seen.

When the Mongolian army arrived at Changqiu Village in panic, they were already demoralized and exhausted. Some of its cavalry were on guard and some were resting, while the new annexes and civilians began to build a camp under the whip of Kudu's own soldiers. The Mongolian army had enough of the hardships of artillery, and naturally learned some ways to deal with it. In addition to earthen walls and trenches, it is also possible to stay as far away as possible. It's just that there is not much flat land under the Changqiu village, and it is only more than a mile to retreat to the hillside opposite the walled gate. Kudu obviously knew that this distance was within the range of the artillery, but the terrain limited the ability to camp here, which is why he ordered the camp to be built immediately, despite the exhaustion of his men.

Kudu was convinced that the whip would increase efficiency. No, it only took half a day for the Mongolian army to set up camp and began to set up siege weapons again. This time, the Mongolian army had two siege weapons, one was a bed crossbow and a trebuchet, which were dozens. Since Pengshan City is dozens of miles away from Changqiu Village, the Mongolian army made these two siege equipment parts in advance and brought them to Changqiu Village by mules and horses, and only needed to reassemble them in the camp. The other is iron artillery, this time he brought twenty-one artillery pieces weighing 400 catties, which is also half of the number of artillery copied by Liu Heima after the battle of Hengyuan Fort.

The heavy bed crossbows in the Mongolian army camp could barely reach Changqiu Village, but the iron artillery needed to be advanced to a mile away, while the trebuchets had a shorter range, only half a mile. Kudu's idea was to first suppress the fire in the village with heavy bed crossbows, then dig a trench to advance to a mile to erect artillery, and then use artillery to destroy the wall and gate. As for the trebuchet, it is to make up for the weakness of the two direct firepower of bed crossbows and artillery, and throw earth-shattering thunder into the wall, providing warp fire support for the charging new annex army. The role of the 400 Mongol cavalry was, on the one hand, to supervise the battle, and on the other hand, to pursue those who fled after the break.

Although the construction period was rushed, the upgrade project of Changqiu Village was still only a quarter completed. The original earthen wall was thin and low, and could only barely block the shooting of the bed crossbow, and could not stop the stone projectiles thrown by the trebuchet at all, and it was even more impossible to block the artillery bombardment. Before the Perak army was stationed, the Changqiu villagers were able to hold off the Mongol attack. On the one hand, the attacking Mongol army was not very numerous, either a ten-man cavalry team or a fifty-man infantry team. These Mongolian armies were mainly plundering, and did not aim to attack fortifications, and naturally there were no siege weapons.

In charge of the defense of Changqiu Village was Zeng Yong, deputy commander of the Perak Army Garrison Brigade and commander of the training battalion, and his main force was three non-commissioned officer companies, with 100 militiamen as logistical support. The training battalion has a total of four non-commissioned officer companies and one officer company, and this time Zeng Yong only brought three non-commissioned officer companies over, leaving two companies in Yokohara Fort. On the one hand, the two companies had other tasks, and on the other hand, he had enough confidence in his subordinates. It is said that the soldiers of the training battalion are all selected from the Perak Army, and they are trained as combat backbones and reserve officers, and they are extremely good in terms of political literacy, fighting will, and military skills. It's just that the garrison brigades, including the training battalions, are poorly equipped, and their comprehensive combat strength is not comparable to that of field brigades, nor can they be compared with the special battalions and reconnaissance battalions of internal guard brigades.

As soon as Kudu led the army out of Pengshan City, the Thunderbolt army detected that before they had reached half the distance, the Thunderbolt army urgently transferred four fortress guns and six heavy tiger squat guns from Pujiang City. The arrival of these cannons gave Zeng Yong great confidence, and in order to show his strength without being held back, he moved the hundreds of migrant workers and villagers who built Changqiu Fort to a safe place. He even rejected Yu San's suggestion that all the special battalions be transferred to Changqiu Village to assist in the defense, but suggested that Yu San's special forces prepare more ropes in case there are too many prisoners and not enough ropes. For Zeng Yong's pride, Yu San didn't think it was arrogant, but took it for granted, and the two of them also looked at each other and laughed.

It's just that the ideal is very plump, and the reality is very skinny. Well, it wasn't Zeng Yong who sat down, but Kudu. Kudu's echelon fire advance tactics seem to be invulnerable, but this has a premise, that is, the artillery of the Thunderbolt army can't hit the bed crossbow in the barracks, and it can't hit the artillery after the Mongolian army's fortifications, of course, if Changqiu Zhai's no artillery is more perfect.

To say that this Zeng Yong is also black-bellied, he deliberately did not fire the cannon when the Mongolian army set up camp, or even when the Mongolian army dug trenches to place artillery, but ordered the cannon to be fired when the Mongolian army was preparing to test the artillery. His goal was not only to destroy the artillery, but to kill and wound the Mongolian gunners as much as possible, which was also the principle of prioritizing the killing of high-value targets. When the Thunderbolt army opened fire, the Mongolian army's bed crossbow had already fired many rounds, and the earthen wall of Changqiu Village was nailed with bed crossbow arrows. It's just that these arrows didn't hurt anyone, and the people in the village had already hidden.

Zeng Yong ordered all the artillery to be aimed at the artillery positions of the Mongolian army. The condescending firing of the fortress cannon increased the power of the solid shells a lot, directly blasting away the fortifications in front of the Mongolian artillery, and even one shot fell into the ammunition, triggering a strong martyrdom. Although the fortress cannon is powerful, the lethality is not as good as the six tiger squat cannons. Due to the blessing of the terrain, the artillery positions of the Mongolian army were just within the range of these heavy tiger squat guns, and the scorching shotguns could cover the gunners of the Mongolian army. This tiger squat cannon is also called a hundred cannons, that is, it has many projectiles and a large killing range.

After several rounds of shelling, all the Mongolian artillery was dumb. Due to the low hit rate and the protection of the earthen wall, the 21 guns of the Mongolian army were not damaged much, but the gunners were dead. Zeng Yong also ordered the fortress cannon to be reloaded with shotguns, and bombarded the Mongolian army's attack equipment and crowded places, until the barrel of the cannon turned red before stopping. At this time, all the siege equipment of the Mongolian army was dumb, the new annexed army and the people fled in all directions like rabbits, and even the cavalry began to flee back. Seeing this, he had to sigh and lead his soldiers to retreat in the direction of Pengshan City.