A line of sky is a long and narrow passage in the middle of Alunmu Mountain. From a distance, this passage is like a giant axe that splits Alunmu Mountain from the middle.

The Yishitian is about 400 meters long from east to west, and the highest point is about 300 meters. The above is the narrowest and gradually widens to the ground. The narrowest point on the top is less than four meters, and the widest point on the ground is about six or seven meters. Since ancient times, the Yishitian has been a must-fight place for military strategists.

Alunmu Mountain is about 30 kilometers away from Kailu in the northwest and about 65 kilometers away from Tongliao in the southeast. From Kailu to Tongliao, if you don’t want to detour to avoid Alunmu Mountain, then from Tongliao to Kailu, a line of sky is the must-pass place.

Although it is deep winter now, there is snow everywhere, and the weather is icy and snowy, and the Alunmu Mountain is no exception. However, due to its special terrain, the mountain wind is howling all year round, so there is little snow in the first ray of sky, even in the cold snow, deep winter, it is still accessible.

"Well!"

When the opening of the first line was still one or two hundred meters away from the southeast of the first line, Wang Yue held the horse and immediately ordered: "As long as the original plan, all the special forces members will dismount immediately. Captain Feng, you will lead your subordinates to continue moving forward."

"Yes, Chief."

"Yes, sir."

"Captain Feng, remember to slow down a little later. Be sure to let the Japanese vanguards watch you enter the first-line sky. After leaving the first-line sky, you should slow down even more. Once the gunfire sounds, you can lead the team back to join the battle...."

...

"Who?"

"I am my own people, my own people. I am Xu Yongbiao, the commander of the 33rd Regiment of the 17th Brigade. I am here to welcome General Wang."

When Wang Yue was just giving instructions to Feng Tianbao, he rushed down a dozen people quickly from the mountain road on one side. The headed officer had a collar's rank epaulette hanging on his shoulders. This person was Xu Yongbiao, the new commander of the 33rd Regiment of the 17th Brigade. When he saw Wang Yue and his party from afar, Xu Yongbiao came down from the ambush on the hillside to greet Wang Yue. Speaking of which, Wang Yue was Xu Yongbiao's benefactor. If it were not for Wang Yue's strong recommendation, Xu Yongbiao would not have been the commander.

"Oh. Captain Xu is here, Jingen is his own people." Wang Yue smiled and asked Bao Jingen and others to let go of Xu Yongbiao and his group, then turned around and said to Feng Tianbao: "Captain Feng. Take care. Everything will be done as planned."

"Yes, sir, please ensure that you complete the task."

Feng Tianbao saluted and led the team to slap. Under the leadership of Xu Yongbiao, Wang Yue and others quickly disappeared from the mountain road, drilled the snow-capped mountains, and soon arrived at the ambush point of the 33rd regiment. Of course, the soldiers who were following behind consciously erased the traces to prevent the Japanese from discovering clues.

A few minutes later, Wang Yue and others had just climbed the hillside on one side, and the Japanese vanguard arrived at the southeast entrance of the first line of Tiantian. The first one to arrive was the troops of Asakura Nan, the unit of the still-organized first squadron. Asakura Nan was scolded at the west gate of Tongliao City. The pursuit was a lifelong struggle, and he always set an example and ran at the forefront of the team.

Wow!

"The terrain here is almost certain. If the Chinese people set up an ambush, it will be troublesome." Asakura Nan held down his war horses and stopped all the soldiers. After a brief observation, he ordered: "Pan Yazi, lead the reconnaissance team and enter the reconnaissance carefully. Once an ambush is found, shoot and warn. If there are no ambush, quickly return it."

"Hi."

Pan Yazi took the order and left. After a while, the cavalry from other squadrons of the 26th Cavalry Regiment arrived one after another. Finally, the regiment commander Shan Shanyuan led the corps headquarters to arrive.

"Yoxi, Asakura Jun is doing well. The terrain here is very dangerous. The Chinese call it "Yixiantian". It is indeed a good place to ambush." ​​Shanshanyuan said bluntly.

"Hey, thank you for the compliment of the wing captain, this is all the teachings of the wing captain..."

Asakura Nan was scolded on the west gate of Tongliao just now, and now he was praised, and finally a rare smile appeared on his face. However, Asakura Nan was obviously too happy, and before he finished speaking the compliments, he was interrupted by Shan Shanyuan.

"Kun Asakura, although you sent scouts to investigate the internal situation of the first line of heaven, have you ever sent someone to investigate the situation around you? Look at the left and right sides of us, there are low hillsides more than 100 meters away. What should I do if the Chinese people set up an ambush on those hillsides? What should I do if the Chinese people cut off our retreat?" Shan Shanyuan asked.

"Hey, I'll send someone to investigate now...

"Report."

Asakura Nan was about to send people to investigate the surrounding situation again, the investigation team led by Pan Yazi rushed out from the first line of the sky and galloped all the way to Asakura Nan and Shanshanyuan, then dismounted and reported: "Report to the commander of the regiment and squadron. There were no ambushes in the passage, and the Chinese cavalry had already left the northwest entrance of the passage."

"Oh, are you sure?" Shan Shanyuan asked sternly.

If he had encountered Chinese deserters before, Shanshanyuan had no reason to doubt it, but the Chinese soldiers he encountered this time were really unreasonable. Such a favorable terrain would not be used for ambushing, so it would be necessary to confirm it again and again.

"I am sure that half of our team members are still there, and we are guarding the other end of the passage. There are absolutely no Chinese ambush." ​​The captain of the investigation team, Pan Yazi, answered very affirmatively. As long as Shanshanyuan asked another question, Pan Yazi might have to swore in the name of the Emperor.

"Captain of the United Nations, are we too careful? After all, the Chinese are Chinese, and there are only three or four hundred cavalrymen. They are running all the way, how can they set up an ambush?" The second squadron leader Aarii Asahi said. Although he had just sacrificed a lot in the second squadron of Tongliao City, the other party was prepared after all. Now that he has pursued and reconnaissanced, there should be no big problem.

"Yes, your corps leader, the Chinese people are not slow. If we hesitate, the Chinese people will probably enter Kailu County. If these Chinese people are allowed to enter the city, it will be even more difficult to attack Lu at that time." Teng Yuan, the commander of the machine gun squadron, also echoed.

When Shan Shanyuan heard several squadron leaders urging them to move forward as soon as possible, his frown became even more powerful. In fact, since entering this place, Shan Shanyuan has always felt a little depressed. Although it is unknown, it is a real feeling. This makes Shan Shanyuan, who has always been suspicious, feel very uneasy, as if danger is coming.

"Are you scared by the Chinese just now?" Shan Shanyuan sighed in his heart, then aimed at the surrounding mountains again. After pondering for a while, he decisively ordered: "Order. The Third Squadron and Fourth Squadron retreated for 100 meters. Keep the retreat, the First Squadron and Second Squadrons quickly broke through the first line of the sky, and the entire machine gun squadron dismounted."

"Hi."

Although several squadron leaders felt that Shan Shanyuan was a little too careful, they still chose to execute Shan Shanyuan's orders without fail. Third and fourth squadrons began to retreat quickly. Although they did not choose to dismount, they lined up and monitored closely. The Japanese at the end, they almost extended to the place where Wang Yue had just dismounted.

...

"Grandma, this old Japanese man is really cunning. Damn it, can't he not be so cautious?" Wang Yue murmured to himself.

On the distant hillside, Wang Yue and others were always staring at the entrance of the Yishitian. Asakura Nan sent people to investigate. Originally, the investigation outside was over, and the large army should have accelerated its advance, but they never thought that the old Japanese actually sent only half of the troops to advance, while the other half of the Japanese actually retreated instead of advancing and wanted to defend the retreat.

"General Wang, what should I do now?" Xu Yongbiao asked.

"It seems that it is a bit difficult to wipe out these Japanese devils quickly." Wang Yue nodded and then asked, "By the way, have I asked you all the explosives buried at the foot of the mountain?"

The ideal situation for this battle is that the Japanese devils of the 25th Cavalry Regiment all entered the first-line sky corridor, and then used explosives to blow the exits of both ends. At the 33rd Regiment, the southeast entrance of the first-line sky, the 56th was responsible for blocking the northwest entrance. Above the first-line sky, they were still constantly using grenades, rolling wood and huge rocks to attack, so that they could quickly fight and wipe out the 25th Cavalry Regiment.

At present, this situation is not unexpected. After all, the Japanese are not pig brains. If they are pig brains, they would not be able to defeat the three northeastern provinces, so it is expected. However, in this case, it would be much more difficult to wipe out the gang, but no matter what, Wang Yue would not be able to let them go.

So before the ambush, Wang Yue specifically instructed Xu Yongbiao to let him lay a large amount of explosives about two hundred meters away from the southeast of the first line of sky. As long as the explosives are detonated, at least the mountain road will collapse. If you want to withdraw from here, at least the horse will definitely not be able to ride over.

"Buried, buried." Xu Yongbiao responded hurriedly.

"That's good. Later, as long as the explosion sounds from the northwest entrance in the first ray of sky, we will also blow up the mountain road. We will definitely not give the Japanese a chance to break through the siege by horse. Do you understand?" Wang Yue ordered.

"I understand, understand, I will send someone to the detonation point to guard it." Xu Yongbiao responded.

Rumble!

As soon as Xu Yongbiao arranged the mission, he heard a shocking explosion coming from the northwest of Yixiantian. There was no doubt that although the Japanese only sent two squadrons to pass Yixiantian first, when they were about to arrive at the northwest entrance of Yixiantian, Cui Xingwu still issued an order to detonate.

At the northwest entrance of Yishitian, with a huge explosion, the mountains on both sides of the exit collapsed instantly. The huge rocks, mixed with thick dust and snow, piled up towards the exit below. The Japanese who were charging forward rushed to the war horses, but it was too late to retreat. Dozens of Japanese were instantly flooded by rocks and dust, and they couldn't even call.

"Baga, there are ambushers, retreat!" Asakura Nan said angrily.

...

At the southeast entrance of Yishitian, Shanshanyuan heard the explosion from Yishitian, his face turned pale in an instant, and he cursed: "Baga, the cunning Chinese."

Rumble!

However, Shan Shanyuan's scolding had not ended yet. In the rear of the Third and Fourth Squadrons, there was another shocking explosion on the mountain road retreating to Tongliao.

Da da da da da!

Bang bang bang bang!

Kill! (To be continued...)
Chapter completed!