Both Zhang Hong and Guo Jia agreed with Xun You's suggestions, but the focus was different.

The reason Zhang Hong agreed was that although Zhou Yu had the experience of commanding ten thousand people, he had always been defending the city before and had not experienced major wars. This time, he wanted to fight with Liu Xun, Chen Ji and others, and might have to organize a siege. His subordinates also had to command generals like Deng Zhan, Lou Gui, and Sun Fu. With Zhou Yu's qualifications, it would be difficult to convince the public. If Sun Ce went to war together, he could coordinate the generals more conveniently than Zhou Yu to reduce internal friction.

No matter when, internal friction will always exist, the only difference is whether the main general can control it well and not let internal friction affect the overall situation. Zhou Yu has outstanding abilities and will definitely be a leader in the future, but he is still young and has no outstanding results, so it is difficult to convince people.

The reason why Guo Jia agrees is a tactical perspective. Although ordinary people like to win the more with the few and the weak defeat the strong, from the perspective of military strategy, especially when calculating the temple, it still advocates concentrating superior forces to bully the weak with the strong in order to overcome them. In addition to supporting Xun You's suggestions, Guo Jia further proposed a tactical plan to combine virtual and real. Taking Zhou Yu as the weak, he advanced to the Nanjun with great force, and led the elite troops to break into Jiangxia. If Liu Xun goes to rescue Nanjun, Sun Ce can easily defeat Jiangxia. If Liu Xun refuses to save him, then Sun Ce will control Xiling, restrain Liu Xun, and let Zhou Yu face Chen Ji, which can also form an advantage in military strength.

Sun Ce felt it was reasonable, but the change in the combat plan could not be solved in just one sentence or two. At least one problem needs to be solved.

"What should I do if Lujiang?"

Guo Jia shook his feather fan and said slowly: "The way to use troops is to be weak, and the way to be weak is solid. We change the combat plan, not to give up Lujiang. When the elites break into Jiangxia, they can attack Lujiang at the same time. If Chen Deng seizes the city and defends, we will take Jiangxia and then lead the troops to the east. If Chen Deng leads his troops to attack, we will lead him into Runan and see who will welcome him."

Sun Ce nodded repeatedly. Even if he went on the battle, Runan would have his father Sun Jian to take charge, so there should be no problem in tackling Chen Deng. If Chen Deng entered the country, the Runan family would definitely respond. When they jumped out and deal with them, it would be changed to the rightfulness.

This move is great to attract the snake out of the cave. It is perfectly combined with his striking mountain and shocking tigers.

"Then please ask the two to re-program the plan and discuss it with Gongjin and Gongda." Sun Ce thought for a while and said, "It's better you go to Nanyang in person."

Guo Jia smiled. "I think so, but I haven't had time to speak yet."

——

The next morning, Guo Jia left Gepi. Sun Ce arranged for Chen Dao to lead Bai Lishi to escort Guo Jia to Nanyang. Before that, he asked him to go back to Pingyu to meet his family. Guo Jia is already married, with a wife and a concubine in the family. His wife gave birth to a son named Guo Yi, who is only over three years old. It is said that his personality and appearance seem to have been peeled off from Guo Jia, which is absolutely true. Guo Jia always looks proud when he mentions this son.

After seeing Guo Jia off, Sun Ce and Zhang Hong boarded the boat and came to Gebei to watch Huang Yueying's new boat trial sail.

This is a medium-sized warship about ten feet long, often called a fighting ship. There were tower ships in the Han Dynasty, but the tower ships were huge in size, slow in movement, and looked majestic, but unstable, and were easily overturned when exposed to wind. They were usually used for flagships for command by the main general and did not fight in front of the battle. The real battleships were warships and Mengchong. Mengchong was small in size and acted quickly, and could quickly break into the enemy's formation and perform assault tasks, but the load was small and the number of soldiers was limited. The main warships were still fighting ships, which could rush or crash, and crossbowmen could be arranged on the ship.

Huang Yueying's warship was not newly built, but was modified from an old ship. Compared with the previous old ship, the ship was drastically deeper, but the number of oars increased, and the speed was not affected, but was faster. The biggest feature was that Huang Yueying installed a stone thrower on it. The stone thrower was not large, and it was replaced with iron balls, with a range of up to 200 steps, with a range of up to 340 seconds, and within a hundred steps, a larger iron ball was used to hit a hole in a wooden boat. Sun Ce saw with his own eyes a target ship was penetrated and slowly sank into the water.

"In the war, you can also replace the iron balls with oil pots, and then use them to burn the opponent's warship with rockets." Huang Yueying was very proud, her eyes shining and her hands danced. "However, the real killing weapon of this ship is not a stone thrower and a powerful crossbow, but a collision. Just rush over, and with just a collision, the opponent's ship can be knocked out a big hole." Huang Yueying opened her arms and made an exaggerated posture, making her clothes tight. The cute buds showed a vague shape, but she didn't realize it.

"Have you reinforced it?" Sun Ce moved his gaze away and looked at the warship in the distance.

"Well, I used an iron keel."

Sun Ce was startled. Is the iron keel bone not afraid of collision, but I am afraid of rust. "Aren't the iron keel bone not afraid of rust?"

"If you have lacquer, what are you afraid of? But you have to repair it after every war, otherwise you may rust if you touch the paint." Huang Yueying scratched her head, feeling a little embarrassed. "I originally wanted to use copper, but copper is too expensive."

Sun Ce laughed. "It's rare that you know how to save, it's really not easy. But have you ever thought that although iron balls are easier to form than stones, they are disposable consumables after all. How many iron balls will be obtained after a battle?"

"It's indeed a problem, so we need to improve our hit rate."

"When the two armies are fighting, it is no longer easy to maintain such a hit rate, and there is no greater improvement in the short term. However, we can use other methods to save iron balls, such as tying a rope on it."

"Shoot?"

Sun Ce thought about it and felt that this metaphor was indeed very appropriate, but it was not the result he wanted. He was very tempted and continued: "That's right, it's a bit like a rushing shot, but I think it's more like a meteor. Have you ever seen a fire meteor?"

Huang Yueying opened her mouth wide and nodded slowly, a smile bloomed from the corner of her eyes. She clenched her fists. "That's right, so melee combat can also work. If you smash such a big iron ball, hehe, no matter what ship he ships, he wants him to look good." She patted Sun Ce hard, blinked her eyes, and smiled with a red face: "I knew you had a better idea, but it really didn't disappoint me."

Sun Ce turned around and looked around. "Why didn't you see Xu Gonghe? This large meteor hammer is a bit complicated. It's best to let him calculate it together to see how to optimize it and avoid detours."

"He, he's almost crazy, he's going to try the landing time alone. He said that your idea is very good. It's easier to solve a single arc into two straight lines. As long as this time problem is solved, he might be able to write a fixed pattern."

Sun Ce was not happy at all. This idea was good, the direction was correct, but there was no feasibility. To calculate the free fall formula, you must first have a precise timing tool. The leaking pot is definitely not good, at least it must be accurate to seconds. Using the leaking pot to measure the free fall time is as unreliable as Galileo's kerosene lamp to measure the speed of light.

Isn't it really going to drive the mathematicians who invited this heavily, right? Then I'll lose a lot.
Chapter completed!