"This... I just know anyway, you know, your master, you believe me." Zhang Nan said with a smile. Zhang Nan was still very relieved about the system, but even if the system was not reliable, history was always reliable. However, Li Er's words turned Zhang Nan's joy to sadness.

"Okay, I believe you, Qingquan, I have decided. When the Tang Dynasty sent troops to the Turks, you should go to war with the army, which just proves that what you said is true." Li Er also imitated Zhang Nan's appearance and said with a smile.

Before Zhang Nan could react, Cui Shao first jumped out and said, "I hope the emperor thinks twice. Qingquan doesn't know martial arts. What can he do on the battlefield? I hope the emperor thinks twice." Cui Shao said quickly, just kidding, his daughter has just married Zhang Nan. If his son-in-law has something on the battlefield, what should he do?

Although Zhang Nan is still with the generals in the army even when he goes to the battlefield, he has no eyes on the sword on the battlefield. He is afraid of anything if he is not afraid of ten thousand, but he is afraid of something. Cui Shao is still very reluctant to let Zhang Nan go to the battlefield.

"Mr. Cui is so nervous, don't be afraid. If I, Cheng, lead the troops to fight, I will definitely ensure that Qingquan is safe." Cheng Yaojin slapped his chest with his big hands.

Cui Shao gave Cheng Yaojin a blank look, not knowing what to say.

"Your Majesty, do you really let me go with the army?" Zhang Nan asked carefully. After all, if you can, you won't go. Although Zhang Nan likes the army and yearns for life in the military camp, if you go to the battlefield, Zhang Nan is still very clear about how much he has.

"Of course it's true. Since you said so firmly, I don't believe it. Moreover, I have already decided to send the hot air balloon to the battlefield to try this war against the Turks. If I can't fly when I arrive on the battlefield, that's not OK. With you here, I will feel much more at ease." Li Er said with a smile. Li Er said in his heart: "If I don't believe it, I can't cure you."

Zhang Nan shouted in his heart: "Your Majesty, is it so difficult for me to be worth a few hot air balloons in your heart?" Of course, Zhang Nan didn't say it, but just stood aside with a bitter face. However, Li Jing first asked: "Your Majesty, I dare to ask what this hot air balloon is, the emperor actually wants to send it to the battlefield."

"Oh, this is a secret weapon Qingquan gave me, and I like it so much." Li Er said with a smile.

"Your Majesty, please tell me to take a look. I also want to see what this secret weapon is." Cheng Yaojin rubbed his hands and said.

"This...is good, you can also help me see how effective this hot air balloon is. I think it must be a big weapon for the Turks." After Li Er said that, he made a gesture and signaled everyone to come out with him.

When Li Er made a gesture, even Fang Xuanling, Du Ruhui, Changsun Wuji, who were discussing the reasons for sending troops, became interested and followed Li Er out. Soon, everyone came to Li Er's imperial garden.

"Liu Bing, go and ask the guards to prepare. I want to see their recent training results." Li Er ordered. After hearing this, Liu Bing took the order and arranged the order. Li Er sat in the small pavilion in the imperial garden drinking tea, waiting for the hot air balloon to take off.

After waiting for a long time, everyone did not see what the hot air balloon was. Cheng Yaojin whispered to Yuchi Gong beside him: "Heizi, what do you think this hot air balloon is? The emperor actually wants to use it to attack the Turks."

"How could I go there? But the name should not be as powerful as the Kanfeng Crossbow. Hot air balloon? This name doesn't sound like it has any lethality." Yuchi Gong pinched his chin and said.

Li Er heard the conversation between the two generals, squinted his eyes and looked at the sky, and found that the hot air balloon had flown towards him. Li Er didn't say anything, just to see if these ministers of his own could find it.

As a result, after circling the hot air balloon over everyone's heads for three times, everyone still did not find the hot air balloon.

"Your Majesty, are you kidding me, Old Cheng? Where is this hot air balloon?" Cheng Yaojin and others were a little impatient, so they asked.

"Zhijie, you didn't see it?" Li Er said with a smile.

"No? Heizi, did you see it?" After hearing this, Yuchi Gong shook his head.

Li Er smiled and said, "Everyone, you haven't found this hot air balloon, which is enough to prove the lethality of this weapon." After Li Er said that, he pointed at the sky with his fingers. Everyone looked in the direction Li Er pointed, but the rest except Zhang Nan, all the people had grown their mouths.

"Is this the legendary hot air balloon?" Cheng Yaojin said as he opened his mouth wide and looked at the sky.

"This, how can a person go to heaven?" Yuchi Gong also said with a shocked look on his face.

Li Er looked at his ministers as if he was a country bumpkin, and forgot how he saw the hot air balloon for the first time. Since Zhang Nan provided Li Er with the burning device for the hot air balloon, Li Er ordered people to sew the thick animal skin into an airtight airbag. After breaking the arms and legs of several guards and blowing two or three air tanks due to improper operation, Li Er's hot air balloon finally flew up.

"Your Majesty, this hot air balloon is a magical weapon. Look at this height, ordinary bows and arrows cannot shoot hot air balloons at all. If we can attack from above, wouldn't the Turks not even have the strength to fight back?" Li Jing also said with surprise.

"Yes, that's right. I thought so at that time, so I asked Qingquan to get this hot air balloon for me." Li Eryi looked like a hero saw the same thing.

"But Emperor, Rong Chen asked, why can't the emperor equip this thing in large quantities? This hot air balloon is not limited by the terrain, and it is not easy to be discovered. If our soldiers of the Tang Dynasty equipped this thing in large quantities and let the enemy die half of the battle before they could succeed, then wouldn't the war be much easier to fight later?" Li Jing said excitedly.

"Hey, I think too, how can I send the hot air balloon to the sky? We can't make it in the Tang Dynasty, and I don't have so much money to buy it." Li Er also looked like he had no choice.

"Oh? What should I do?" Li Jing continued to ask. It seemed that Li Jing was still very satisfied with this new equipment.

Li Er nodded and signaled Li Jing to look at Zhang Nan. Li Jing looked at Zhang Nan who was looking at the hot air balloon with his head raised, and smiled. When he saw Zhang Nan, Li Jing knew that if this thing was provided by Zhang Nan, there would be no way to copy it.

"Okay, my dear friends, this thing is my secret weapon. I want to test its actual value, so I will send him to the battlefield this time when I go to war." Li Er said with a smile.

At this time, Cheng Yaojin came up and said, "Your Majesty, let's not talk about the rest. Just this hot air balloon, can you let me go there too?"
Chapter completed!