Below them, the Mongolian army, which was like a yellow and black turbid current, was like a vast ocean that could not be seen.

In the distant horizon of their vision, a watchtower with the Thunder Fortress piercing the sky appeared.

At this moment, they saw that the National Defense Forces flag was still flying on the watchtower.

Outside the fortress wall was exposed, a large area of ​​land that was terriblely bombarded by artillery shells, which divided the surrounding Mongolian army from afar.

This shows that the Thunder Fortress is still in the hands of its own people! But at the same time, as they approached, the people on the hot air balloon clearly saw that four huge... earthen cities were built around the Thunder Fortress in four directions, southeast, west and northeast, and northeast. These four ugly earth bumps are about six or seven miles away from the Thunder Fortress... Between the various earthen cities, there are thin lines connecting them together, and it is impossible to see whether it is a earth wall or a trench from a distance! Looking at a huge outline surrounding the Thunder Fortress.

At this time, Tang Tianji saw all this and his hair was blown up! In just ten days, Temu Zhen could not attack the Thunder Fortress, and must have come up with some poisonous plan! At this moment, Tang Tianji suddenly thought about what the huge earthen city built around the Thunder Fortress was used for?

Is this a defensive project prepared by the Mongolian army, or is it a defensive project they used to siege the fortress so that the fortress cannot play a role?

"No, go down and see clearly!"

At this time, Tang Tianji gritted his teeth and asked his deputy to adjust the hot air balloon and lower the height and approach the reconnaissance downward.

Tang Tianji himself knew that his actions were extremely risky.

Because at this time the Mongolian army was far from the time when they relied on bows and arrows to conquer the world.

The closer it is to the central area of ​​the Thunder Fortress, the more likely it is to appear the direct troops of the Mongolian army.

According to previous information, these Mongolian soldiers are equipped with a large number of firearms! Therefore, once the height of its hot air balloon is lowered, it may be hit by the opponent's firepower.

Once the silk-made airbag is shot through by a firearm, it will immediately fall among the thousands of Mongolian troops! But just as Tang Tianji gritted his teeth and prepared to give an order, he suddenly heard a roar of the engine starting at all forces nearby.

When he turned his head in surprise, he saw another hot air balloon hanging basket on his side and in the group of him. The engine was emitting steel blue smoke! As the engine ran with all its strength, the twin-blade propeller behind the hanging basket was rotating rapidly.

Seeing the hot air balloon, while accelerating beyond himself, he began to use the pressure reducing valve to lower the height! "Bitch!"

Seeing this, Tang Tianji immediately roared! He wanted to shout to the other side, but a distance of nearly a hundred meters, in the sound of wind at high altitude, it was useless to shout his throat! At this moment, while lowering the height, he surpassed his hot air balloon, two signal flags made a string of flags... Tang Tianji's deputy quickly made records on the notebook.

At the same time, Tang Tianji himself also whispered the content of the flag language... "I'll... investigate... pay attention to the height!"

When Tang Tianji had just finished reading these two sentences, the hot air balloon in front was already accelerating madly and rushed towards the Mongolian army below! "Please pay attention to copying the information!"

At this time, Tang Tianji gritted his teeth and shouted at his deputy.

Then he turned his head and looked at the hot air balloon in front of him, shouting excitedly: "Ding Xia! Chen Ci!"

"I dare to act without permission. Wait until you come back and see me kick your ass to pieces!"

...Ding Xia and Chen Ci are the operators on the hot air balloon in front, and they are the two top soldiers in the hot air balloon army.

They were obviously very clear that with Tang Tianji's personality, they would have to lower their heights to close reconnaissance after discovering such an enemy situation, and they also knew how dangerous it was to do so! So these two soldiers acted without hesitation without asking for instructions and pierced at the Mongolian army like an ant colony below!... At this time, Tang Tianji and his deputy were holding a telescope and staring at the two red flags on the hanging basket below.

Now the height of Dingxia's group has dropped to less than 500 meters.

While carefully observing the city defense affairs of the Mongolian army below, they also waved the signal flag desperately to report the situation of these facilities to Tang Tianji in the rear.

"The enemy's Tucheng is four, with artillery... Each city has about 300 gates... Rammed earth walls are being built between Tucheng...the height is five meters and the thickness is six meters!"

"What's going on?"

As soon as he saw the content in the flag slogan, Tang Tianji frowned! This thickness of the city wall has far exceeded the requirements of military defense. What the hell are the Mongols doing?

Just as he frowned, he saw a large area of ​​firelight in the Mongolian army position below, like lit firecrackers, starting to flash one after another! Then a large area of ​​white smoke rose up against the ground... The Mongolian army opened fire! At this moment, Tang Tianji widened his eyes and looked at the Ding Xia team in front of him. Their height was about 400 to 500 meters, and it continued to decline! Then he saw the hot air balloon of the Ding Xia team, which suddenly vibrated and suddenly accelerated the speed forward! "It's over! The hot air balloon was shot!"

At this time, Tang Tianji's heart seemed to be pulled by someone, and a tingling pain suddenly surged into his heart! At this time, the hot air balloon driven by Ding Xia and Chen Ci quickly appeared on the originally bulging airbag... This is a sign that the airbag began to leak and was insufficient inflatable! "Ding Xia! Chen Ci!"

Tang Tianji looked at the height of the hot air balloon and fell at a speed visible to the naked eye. He roared loudly with heartache! At this moment, Ding Xia's group in the telescope was still waving the signal flag frantically! Tang Tianji's eyes, blurred by tears, saw that the signal flag was: "Depth between Tucheng and the upper reaches of the Lightning River... Found a deep ditch..." "Enemy's diversion..." "No!"

At this time, Tang Tianji clearly saw that the hot air balloons in the distance were getting lower and lower, and there was another fire and flame in the Mongolian army camp below! At this moment, the red signal flag in front was still beating strongly, like two clusters of bright flames! "Our army will win...Lugang...see!"

When Tang Tianji saw this, the hot air balloon in front was hit by the shotgun bomb fired by the Mongolian army artillery again. The airbag had been pulled into a narrow bunch due to the leakage of gas, and the speed of descent was getting faster and faster like falling stones! The moment this hero's hot air balloon team fell in front of the ground, it suddenly exploded at a height of about 30 meters! The hot air balloon was filled with natural gas pressure vessels, there were kerosene in the engine, and there were residual incendiary bombs in the hanging basket.

Finally, before it touched the ground, the two warriors above detonated it!
Chapter completed!