It was said that it was a general attack, but in fact the pond was dug for more than two days, after all, it had to be large enough, and it had to avoid four or five hours at noon. By bringing in the water of the Qing River, it is better to make a huge pool.

At the same time, it took more time to prepare saltpeter, a full five days, and in the blink of an eye, the summer solstice has passed.

"It is said that Zuo Feng has returned to Luoyang, right?" Liu Tao put on armor for himself, or forced himself to put on armor.

The temperature is between 30°C and 35°C, which is very bad in the era when there are no air conditioners and fans. Originally, it was enough to choke without armor, but it was like a steamer with armor. I thought about how the nail pieces became hot in the sunlight after a while.

Needless, he added: "If someone tells me that I have to wear a suit of armor to fight a decisive battle in this weather, I will definitely think that the other party is crazy!" ”

"That's after the sun became fierce." Lu Yan replied, "That's why my father asked us to get up and prepare for the general attack at the end of the day." ”

The general attack was launched at six o'clock in the morning, and it was just dawn, and it was still five or six hours before the sun completely rose and the temperature soared.

In five or six hours, can you take the city? Seriously, I don't know the bottom of my heart, after all, Guangzong is close to Qinghe, and like Xiaquyang before, there is a moat.

It can only be said that it was not a strong attack at the beginning, otherwise how to deal with this moat would have become a problem.

"It's just that I didn't expect that the teacher actually put the excavated soil into a sack by the way, and this method of using local materials is really clever." Liu Tao sighed.

Lu Zhi's most clever place was that he originally planned to dig earth to build a pond, and then pour saltpeter into it to create ice water. Rely on ice water to cool down the soldiers and ensure that they can stay in condition to attack the city.

It's just that I didn't expect that the excavated soil could still be used to fill the moat...... Sure enough, there was no waste at all.

"If I'm not mistaken, I guess there is another reason." Lu Yan thought for a while, "When I prepare, I think I will probably know...... In other words, my brother is going to take the lead this time? ”

"No, no, no, only Shangguan Yu, Liu Ge and Guan Yubu participated in the war, Zhang Fei led the troops to cruise outside, and it was enough to catch the fish that slipped through the net. I'm in the middle of the schedule, and I don't need to be in the middle of the battle. Liu Tao shook his head.

If his generals lead the battle alone and are out of his line of sight, then the defeated enemy forces will not be counted as his experience. Similarly, an army that is not under his command, or an army that is out of sight, will naturally not be able to take effect.

Recently, a remedy has been found, and that is to use the 'Wind Dragon's Insight' to achieve long-range control. But there is a big premise, he must be in command, and the generals below cannot be allowed to command the troops alone.

After all, he wasn't sure if this would cause the magic to fail, and he had to command it 'personally' before he could prove it was okay. Otherwise, it feels a little too weird to find out that the magic doesn't work, and then temporarily ask to take over the command or something.

"It's okay if you're in the middle, but if you can, brother, it's better not to get too close to the city wall." Lu Yan was also a little relieved when he heard this.

At midnight, the whole army began to assemble, and breakfast had already been eaten, and it was more sumptuous than usual.

Liu Tao originally planned to try to make cool skin, but soon realized that bean sprouts and cucumbers were not available in this era. Forget it, there is no cold skin without aged vinegar and chili oil, it has no soul.

"Whole army, move towards the pool!" Lu Zhi gave an order, and the army began to move over.

It was vaguely visible that on the walls of Gwangjong Fortress, the enemy army had discovered the gathering of officers and soldiers and began to enter a state of preparation for battle. You can still faintly see some firewood smoke, which seems to be burning something.

"It's supposed to be golden juice, right?" Liu Tao thought about it, and then threw the idea out of his mind. Burns can be treated with healing and rejuvenation and bacterial infections can be solved with purifying light.

Of course, only his soldiers. Lu Zhi's subordinates, his magic is useless, in fact, as early as some time ago, as an attempt, he used the magic of 'burning will' on other armies.

After all, the army is not war-weary, so boost morale and launch a general offensive while the weather is not completely warm. Even if you can't participate, it's better to support in the back than to wait for Zuo Feng to come over.

Who knows it's useless, yes, his magic doesn't work against other armies except for the troops under his command.

Obviously, in the default, the other troops are not considered to be under his 'command', so in terms of magic effect judgment, it is judged to be ineffective. Only the troops under their own command will have an effect.

If it weren't for this experience, how could he have gone to the battlefield himself to be on the safe side?

When they arrived at the pool, there were soldiers who specialized in carrying heavy troops, scooped up the water in the pool, and then splashed it on the whole army, so that the armor pieces and the clothes inside were cold and cold pool water.

It's icy cold, the temperature is below 10 degrees, and seriously, it's still surprising that water has this temperature in this weather. However, I have to say that although it is a little cooler, after watering it a few times, the whole person is suddenly refreshed.

Only then, it's not so wonderful......

"Bah, bah, bah...... Why do you throw dirt at me? Chun Yuqiong scolded, it was refreshing, who knew that suddenly he didn't splash water, he changed to splash soil, and his whole body was dirty, dirty and uncomfortable.

"To protect against arrows?" Yuan Shao was expressionless and looked at Lu Zhi.

"Not really." Lu Zhi replied, "The purpose is just to keep the nail from getting hot from the sun...... Just order it! ”

The follow-up is not only the soil, but also the slaked lime, and the whole body becomes white, which is ugly, but it is that the white nail is less absorbent of the sun's rays than the black ones, causing fever.

"It seems that there are many things, although the principle has not been figured out yet, but at least we know, so what will be the effect of doing it." Liu Tao sighed to Guan Yu beside him.

"So, my brother knows how it works?" Guan Yu asked with some curiosity.

"Knowing is knowing, but it's more difficult to explain, I'll tell you if I win, how?" Liu Tao replied, but as soon as he finished speaking, he couldn't help but wonder: Is this considered a flag?

Fortunately, Guan Yu didn't get entangled, silently watching others splash mud and slaked lime on him, and the whole person was colorful. Liu Tao saw it in his eyes, but there was an inexplicable sense of familiarity, after all, this hue is very similar to camouflage.

"A glass of ice water per person, drink it and leave immediately!" And the soldiers of the firehead army brought bowls of ice water.

"Why is this water so bitter?" The first one to drink, I feel that this is ice, but the taste is not very good.

"It's nice to have ice water to drink, but what are you complaining about?" The officer next to him drank it all, and then scolded directly.

The other soldiers also knew this very well, and they didn't talk nonsense, they drank it directly, only to feel a chill from their throats to their stomachs, and their bodies were suddenly cold, and for a while, they actually forgot the high temperature and heat of this hot summer.