This night, Lu Zhao was helpless, and he was white-headed overnight, and the whole person was much older.

  The defense of Xindu City is where his hard work lies, but Cao Liang seems to have hit his death hole, the walls of Xindu are not guaranteed, and Lu Zhao's entire defense plan is in danger of collapse, and all his hard work is about to be wasted.

  Wu Zixu passed the Zhao Pass, and his head turned white overnight, such a historical allusion seems to be true, Lu Zhao was exhausted, and his hair that was originally black and white was really white overnight, and you can see how much pressure Lu Zhao is under.

  At this moment, he finally figured out that the catapult that disappeared from the west of Xindu City was originally transferred to the east by Cao Liang, gathered together, and launched a continuous bombardment of the east gate of Xindu City.

  The catapult was originally just an auxiliary means of siege, but it was played by Cao Liang perfectly, and Le Chengcheng fell because he couldn't withstand such an attack, Cao Liang concocted the same method, and continued to use the catapult to attack Xindu City, which also worked.

  Such a siege method, and the state army can take the city at the cost of almost zero casualties, which will inevitably subvert people's perception of siege warfare in the past. A siege war is a siege of fortification, and the besieging side can only achieve victory if it invests several times the number of troops and consumes huge manpower and material resources.

  However, Cao Liang used a catapult, but he could achieve the goal of bloodless and easily capture the city, and it seems that the offensive and defensive tactics of the city will completely change in the future, which will also be a subversive change.

  But all this doesn't seem to have much to do with Lu Zhao, his duty is just to keep Xindu and the state city of Jizhou, if he fails, it will not only represent the end of his career, but also the end of his life.

  The light was on, and the offensive of the Bingzhou army was still fierce, and the dense stone rain made the city of Xindu almost impossible to gain a foothold, and even the few remaining observation posts were finally killed.

  At this time, no one dared to venture into the city again, and naturally no one could observe that the state army had completed the change of defense again, and Yanghu and Ma Long took over from Du Yu and Xianhong and continued to attack.

  The entire handover process was extremely smooth, and the catapult's attack showed no signs of interruption.

  After Yanghu and Malone took over, the catapult's main target turned to the city wall again.

  After twelve hours of continuous bombardment, it was not repaired, and the walls of Xindu City were already full of holes and cracks, and standing under the city, you could clearly see that the walls had been obviously twisted and deformed, and the widest cracks could be drilled into people.

  Yang Hu believed that with more effort and a little more effort, the city wall would collapse at any time, so he ordered all the catapults to concentrate on the already crumbling city wall and take it in the shortest time possible.

  Although after yesterday's battle, the catapults under Yanghu's men were slightly lost, but they were still able to maintain the number at more than a hundred, so that they could maintain sufficient combat effectiveness, and when hundreds of stone bullets were fired at the same time and bombarded the city wall, the scene was still extremely spectacular.

  Although the main target of the attack was placed on the city wall, it was still very dangerous to climb the city head at this moment, and from time to time there would still be stone bullets falling on the city, and after the white, the Jizhou army could see every move of the Jizhou army on the head of the Xindu city clearly, once a large number of people landed in the city, the catapult would strike it mercilessly, and never give the Jizhou army a chance to repair the city wall.

  At this time, in Lu Zhao's mind, the city wall is far more important than human life, and some people who die have almost no impact on Xindu's defense plan, but if the city wall collapses, the consequences are really unimaginable.

  But the Jizhou army didn't give them a chance to go to the city at all, as long as the Jizhou army landed on the city, there would be countless stone bullets smashed over, and the Jizhou army had to continue to run around with their heads in their hands, and there was no way to stay in the city at all.

  Although Lu Zhao counted on the Jizhou army that had already ascended to the top of the city to play its due role, it seemed that it had little effect now, the main reason was that it took a lot of time to repair the cracks, but the Jizhou army did not have enough time to stay in the city and could not concentrate on repairing the city wall.

  Seeing that the deformation of the city wall was getting worse and worse, and the cracks were getting wider and wider, Lu Zhao sighed bitterly, it seemed that the outer city wall of Xindu could not be defended.

  However, fortunately, Shinto Castle is not built with a single wall, the inside and outside walls complement each other, even if the outer wall is breached, the inner wall can continue to play a role and protect the safety of Shinto Castle.

  But unless it is absolutely necessary, Lu Zhao will not easily use the inner city wall, because Lu Zhao knows that the real defense point of the Jizhou army is on the outer city wall, except for the height of the two is almost the same, other things such as thickness, solidity and fortifications are completely concentrated on the outer wall.

  Once the outer city wall is lost, the inner city wall will inevitably be under greater pressure, because for the Jizhou army, the outer city wall is lost, and the inner city wall can be retreated, but if the inner city wall is also lost, then the Xindu city will fall.

  In this way, the inner city wall became their last straw, and the pressure on the defenders was naturally conceivable.

  If it were possible, Lu Zhao would never want to retreat to the inner city wall. But the current situation had to make him painfully accept one of the results of this, the collapse of the outer city wall has become inevitable, and the difference is only a matter of time.

  Therefore, Lu Zhao had to order the Jizhou army, which was originally stuck under the outer city wall, to start moving to the inner city, if the outer city wall really collapsed, there was no point in these troops staying here, Lu Zhao would not think that he had lost the protection of the city wall, and the Jizhou army could compete with the Jizhou army, under the same conditions, the combat effectiveness of the Jizhou army was much higher than that of the Jizhou army, which was an indisputable fact.

  Retreating to the inner city wall has become Lu Zhao's only hope, even if he is unwilling, he must immediately deploy the second line of defense of Xindu City, time does not wait for me, so many troops, all withdrawn to the inner city wall, just reorganizing the defense force is a more troublesome matter, after all, the inner city wall as a backup plan for the defense system of Xindu, has not been taken seriously, and the occasional drill is also limited to the participation of soldiers and horses, all the troops gathered here, it is really the first time to break the wilderness.

  If we wait until the outer city wall collapses before retreating, then it will be too late.