One night the river filled the trenches, the Song army blocked the gap, Wanyan Yulie looked at a pool of spring water stupidly, and when the river froze into ice, they lost the most important barrier, and the enemy was able to approach directly under the trench wall. Back then, he had seen the Song army's ability to attack fortifications, and the strong city defenses of Yanjing and Liaoyang could not block the artillery fire of the Song army, not to mention the trench walls built in the way of tuntu, it was okay to fool the uncivilized Mughuls with this, but it was impossible for the Song army. What Wanyan Yulie can do now is to ask Taizhou for help, and pray that God will open his eyes and send summer as soon as possible!

"Trench in front of the target fort, mortar salvo!" Cao Yi gave an order, and several large-caliber mortar cannons roared, and several iron balls the size of sea bowls erupted from the muzzles, and the projectiles were thrown high and fell heavily on the ice.

"Report to the pacification envoy, the projectile failed to smash through the ice, and it can be crossed!" Cao Yi held the telescope and watched the thirty-pound projectile smash on the ice, splashing ice chips, but it did not smash through the ice, but Ban was trapped in it, and there was no river gushing out, according to his experience, the ice was at least more than two feet, which could withstand the weight of people and horses.

"The fire covers the sappers to carry out blasting, blow up the trench wall, and the 4th and 5th brigades advance to defend themselves to prevent the enemy from counterattacking!" Zheng Ping ordered.

"Yes, the mortar shells are fired, and the extended shots are fired to bombard the enemy in the fort; Rapid-fire cannons shoot straight at them, destroy trench fortifications, and crush enemy archers! Cao Yi immediately gave the order after receiving the order, and at the same time he ordered the observation post to closely monitor the movement of the stone throwers in the fort, and destroy them immediately after discovering them.

Under the cover of artillery fire, the sappers jumped out, stepped on the ice, braved the rain of arrows thrown by the enemy, quickly approached the trench wall, stuck to the root of the wall, and immediately began to excavate. The machine guns in front of the formation also began to fire at the enemy troops who tried to cast the rolling stones. To prevent them from blocking the blasting of the sappers, the sergeants of the baggage battalion took the opportunity to deliver large quantities of explosives. Piled up at the blasting point excavated by the sappers.

There was a loud ...... bang, and everyone on the battlefield felt a shock on the ground. Even the soldiers who were placed at the front were shaken by the violent explosion and fell to the ground. And the trench wall swayed twice like a giant who had drunk too much, and fell down with a bang, raising a huge cloud of dust and smoke, enveloping the fortress in it, and everyone looked at the trench wall that had become a beam of earth, and couldn't help but sigh, the power of this new type of gunpowder is really fucking great!

"It's over!" Although Wanyan Yulie was behind the secondary wall, he was still shocked and sat on the ground. Who made him lame, and then he saw the sergeant on the side wall who was preparing for war riding the wind under the shock wave of the explosion, and fell around him with a clatter, and these people were bleeding and not moving, obviously at the moment of the explosion had been shattered all organs, and he was killed at that time, and he let out a wail when he saw such a miserable situation.

"What are you helping me do, gather the soldiers and hurry up to the city to defend, and light the beacon fire to warn!" Wanyan Yulie yelled angrily at the panicked people around him. The explosion was clearly beyond the expectations of the soldiers of the Jin army in the fortress. They scurried around the stockade in fear like headless flies, looking for what they thought was safe, and some of them had even collapsed, screaming and trying to flee from it. Seeing that the camp was about to be bombed, Wanyan Yulie had to cheer up and prepare to fight again, because he knew that Dajin Guo could no longer afford to lose.

Yongbyon Fort was an important support point for the western defensive line. Therefore, double moats and double walls are adopted, and they are composed of moats, moats, inner moats, and secondary walls from the inside to the outside. Although the Song army conquered the outer defenses, the Jin army could still defend against the fort walls and inner trenches. Therefore, it cannot be said that the fortress has fallen, but its defensive depth has been compressed, and the defensive surface has been reduced. And where Yan Yulie's responsibilities lie, he can't retreat, and the beacon fire shows that the shape is no longer optimistic......

…………

"Dashuai, Fusan Zhongyi has left Taizhou and led the main force to reinforce the boundary trench defense line!" Linhuang was deployed in the Shuai Mansion, and Shang Hu said to Zhao Li.

"How is the strength of Changchun Prefecture?" Zhao Li asked again.

"Changchun Prefecture was handed over to the right prison army Wanyan Bingde to defend, and the main force was transferred to Taizhou by Fusan Zhongyi, only 10,000 new tribal troops and two thousand troops were stationed, and the combat effectiveness was weak." Shang Hu replied.

"Where have the dragon generals and lion generals arrived?" Zhao Li nodded and asked again.

"According to the plan, the dragon general and the lion general have already crossed the Nashui with the Mughurs as the leader, and after returning to the side of the Xishuai Mansion, they entered the old land of the Mughur Mansion, and made a posture of attacking Huining Mansion, and now the Wushu has sent a large army from Huining Mansion into the grassland to prepare for the battle!" Shang Hu marked the location of the dragon general and the lion general on the map.

"Well, now that we've completed our plan to divert the tiger from the mountain, it's time for the second step!" Zhao Li breathed a sigh of relief and said, "Order the two generals of the dragon and the lion to quickly turn back from the Yazi River, capture Changchun Prefecture, and cut off the retreat of the enemy army in Xishuaifu; Ordered the two armies of Dragon Wing and Lion Wing to attack at the same time, break through the boundary trench and outflank the two wings in a roundabout way, and gather and annihilate the Jin Army on the West Road! Zhao Li turned to the army waiting on the side and said.

"Marshal, if the Zuo Shuaifu sends reinforcements, the Lion Wing Army will be flanked, and the servants will flee to Liaoxi with their troops, and we have to guard against it!" Shang Hu said with some concern, the Jin army is adjacent to the Marshal's Mansion on the left and right, and if he finds that he is surrounded, he is likely to escape by the way.

"Hmph, Wan Yan Liang is probably too busy to take care of himself at the moment, His Majesty has already mobilized all the troops to move north, once the news of the pro-conquest comes out, how dare Zuo Shuaifu move a soldier and a pawn, let alone divide the troops to respond!" Zhao Li said with a smile......

Changchun Prefecture was built in the Liao Dynasty, located in the northeast of Linhuang Prefecture, which belonged to the edge of the core area of the Khitan nationality, because the Liao implemented the ruling policy and policy of governing according to customs, in order to strengthen the jurisdiction of this area, effectively control the southward and westward expansion of the Mengwu and Jurchen people, set up a state-level government in the middle reaches of the Yazi River, exercise tribal jurisdiction over this area, and is the political, economic, military and cultural center of the Liao control of the northern region for hundreds of miles.

The city of Changchun Prefecture is magnificent and square, the rammed earth plate of the city wall is built, the plane is slightly square, the circumference of the city wall is more than 5,000 steps, the city wall is built with four corner towers, there is a city gate in the east, west, south and north respectively, and there is an urn city outside the south and north gates. From the wharf of the west gate of Changchun Prefecture City, you can go straight to Yuerluo, enter the water, and then enter the mixed river, reach the Ningjiang Prefecture and Huanglongfu area along the river, and reach the Jinshan where it belongs against the water, and the water and land transportation are very convenient, which promotes the development of agriculture and handicrafts and the exchange of goods. After being captured by Jin Taizu Wanyan Aguta, it became a military center of the Jin Guokong Outer Mongolian and Tatar tribes in the northeast.

Wanyan Bingde has always had a grudge against himself being demoted from the capital, although he knows that there is not much to do with the Neurotic Emperor, but he hates it together with Wushu. Because he thinks that he colluded with the empress to prepare to seize power, it is precisely because the emperor is mediocre, killing the ministers of the clan indiscriminately, and doing the right thing, if he is Mingjun himself, why should he oppose him. And Wushu is even more of a traitor in his eyes, it is for the sake of being a powerful minister that he does everything possible to protect the faint king, allowing him to do whatever he wants, but he dethrones such a loyal minister as himself here.

Wanyan Bingde has been depressed since he came to Changchun Prefecture, he knows that his supervisor not only can't supervise others, but has to be monitored by others, he has no military power, and he has no right to intervene in the affairs of the Shuaifu, in fact, it is just a decoration. As for his partner's loyalty and loyalty, Wanyan Bingde was even more disdainful, thinking that he just relied on the nepotism of the aunt of Queen Taizu, and he stammered with Wushu to climb to his head, but he forgot that he also relied on the Yu Yin of his grandfather Zonghan to get to the top.

Wanyan Bingde knew that the vultures would not die and the emperor would not be able to turn over if he did not change himself, so he also accepted his fate, and just sang prostitutes in the house every day, without asking about the world. And this kind of day didn't last long, what made him cry and laugh even more was that he was now able to come back and stay in Shuaifu, and he still relied on the Song people to 'help', and he had to let him take care of his family when he wanted to lead the troops to the front to fight. Of course, he also had reservations of trust, and he took all the elites with him, leaving only some newly recruited tribal troops.

Wanyan Bingde knew that the Song army was divided into two ways, one way to storm the boundary trench defense line, and the other way had already killed from the grassland to the Beijing division, and now although he was nervous, he actually didn't have anything to do. But he still hopes in his heart that the Song army can break through the interception and go straight to the Jingshi, and the servants are defeated by Zhongyi, and it is best to be slaughtered by the Song people, so that he will become the leader of the Right Marshal's Mansion and have more right to speak. When he joins forces with Marshal Zuo Yanliang, who is also the queen's party, he can realize his desire to force the vultures, retire the emperor, and push the queen to govern.

But just when Wanyan Bingde was dreaming with joy, a spy suddenly came to report that the 50,000 Song troops attacking the Beijing division suddenly turned to Changchun Prefecture, and now they have crossed the Yazi River, less than a day's journey from the state capital. This news frightened Wan Yan Bingde, his martial and wise grandfather couldn't defeat the Song army, not to mention that he, a person who had never led a soldier, made him sigh that his fate was not good, and scolded the Song people for not following the rules, if you don't fight a good Jingshi, why are you looking for your own bad luck!

"Stay in the green mountains, don't worry about no firewood", Wan Yan Bingde thought of escaping, go to find the servants to meet with Zhongyi, if they don't kill themselves, they will also fall into the hands of the Song army if they are cut off; But there must be a reason to go by himself, he summoned the Shuaifu, saying that the Song army wanted to invade Changchun Prefecture and he would go to the Zuo Shuaifu to ask for reinforcements. It's not glamorous, but there's always an excuse to get away with it.

If you want to leave, you can leave quickly, but Yan Bingde thought that he was going to send someone under the fence and had to prepare some things for himself, so he opened the treasury in the name of the prison army and took out gold and silver property. Those who defended Changchun Prefecture were mostly tribal troops, and they had already seen that Yan Bingde wanted to abandon the city and escape, you can take the things in the treasury, why can't we take them, so they also ransacked them, and now the Song army has not yet arrived, and Changchun Prefecture City has fallen into chaos...... (To be continued......)