A high-explosive grenade smashed near the mouth of the tunnel, violently exploding and splashing a large amount of sand and gravel, instantly burying the small mouth of the tunnel, fortunately the machine gun team deployed there had withdrawn into the tunnel, but even then, it took a long time for the soldiers to dig the mouth of the tunnel.

"His grandmother's, this is a 105mm heavy artillery, either Type 99 or Type 91, the little devil is really fucking bloody, it's been three days, it's been three days with us, and it's still been like this." Li Yunlong wiped the dirt on his head and said hatefully, just now this guy was lying at the mouth of the pit to observe the situation of the devil, if it wasn't for the fast movement, it is estimated that he would have been buried at this time.

"Lao Li, what do you say you are doing, just mix it into the third brigade independently, and the little strength of the third brigade will definitely not be able to gnaw at Laojun Mountain, and it is estimated that it is just a show." Wang Yue pouted on the side, also patting the dirt on his body, okay, it was actually Li Yunlong and Wang Yue who were watching the excitement there just now.

"The little devils think this is walking the dog, and they let the Imperial Association come out to attack more than a dozen times every day, they really think they can drain our ammunition." Throwing the mud-covered towel to the guard, Li Yunlong said disdainfully.

"The Japanese can't help it, haven't you noticed that the devils have even used eight kilograms and fifteen kilograms of aerial bombs these days? In fact, they don't have much capital in their hands, if you want me to say, Lao Li, you still urge the troops to open the underground palace as soon as possible, so that we can withdraw, it is always consumed like this, it is too bad to give the imperial army face. Wang Yue said in a joking tone.

"I want to too, but the Yongdao is too badly damaged, and it can only be reinforced while excavating, the key is that I don't know how long it is, Brother Wang, are you sure that there are things from your ancestors hidden in the underground palace?" Li Yunlong was skeptical of Wang Yue's statement, but he had to believe it, you said that Wang Yue was false, so how could this guy know that Lao Junguan was full of red sandalwood, and how could he know that the underground palace that had been destroyed for hundreds of years?

But when he was in the Huting stronghold at that time, Li Yunlong clearly felt that Wang Yue had heard the name of Laojun Mountain for the first time! It's weird at all.

"Let's do it, at this rate, I estimate that I will be able to open the underground palace tonight, Lao Li, I can tell you, the premise of my support to our Eighth Route Army is that I am the first to enter the underground palace, and you must restrain the soldiers here, otherwise, I will not be able to explain to the elders in the family." Wang Yue Zhengse said that he can use the system to scan, and he naturally knows the specific situation of the excavation, but it is not easy to say.

"Come on, don't watch the excitement, I'll go down and replace Kong Er's stunned face." After speaking, Li Yunlong took off his military uniform as soon as he pulled it, revealing his scarred upper body, not that he was heroic or had any hobbies, it was really too hot in the corridor, and people who were not in good health really couldn't do this job, just like that, it was necessary to make a horizontal tunnel every 100 meters to ensure ventilation, otherwise it would really suffocate people.

Let's talk about the little devil on the other side, at the beginning, when the independent mixed into the third brigade came, it was indeed a posture to take Laojun Mountain in one fell swoop, you must know that Lieutenant General Yoshizawa Tadao attacked the Eighth Route Army and the Jin Sui Army all the way, and it was about to become a joke of the imperial army, and he was holding back the fire in his belly and had nowhere to sprinkle it!

In the first wave of the devil's attack, hundreds of large and small artillery pieces were concentrated, and the surface position of Laojun Mountain was bombarded for half an hour, and the precious army aviation also gathered more than 40 bombers and more than 30 fighters to cooperate, and even used mustard gas, phosgene and other chemical weapons.

However, it was useless, in the face of Laojun Mountain, which had been turned into a fortress, the devil's indiscriminate bombardment did achieve great results, killing and injuring hundreds of people of the Eighth Route Army, but it was not enough to make the defense of the Eighth Route Army collapse, which was vividly reflected in the next attack.

In the face of a brigade of devils, a brigade of the Imperial Army, a full 5,000 people attack, the main position of Laojun Mountain, which was already full of devastation, suddenly appeared thousands of troops, light machine guns, heavy machine guns, mortars The number is extremely large, the density of firepower far exceeds that of the Japanese army, and the attacking Japanese puppet army troops were swept down a large area at once, in the face of unprecedented firepower intensity, even the devils who followed the Imperial Association Army to supervise the battle were a little shaken.

During this period, the artillery firepower of the devil also tried to suppress it, but the artillery accuracy of the devil's artillery equipment was limited, and it was difficult to directly hit the fire bunkers of the Eighth Route Army, and those bunkers of the Eighth Route Army were reinforced with logs and rammed earth, as long as they were not directly hit by large-caliber heavy artillery, the general attack was useless, and the tried and tested grenadiers were used to deal with the bunkers of the Eighth Route Army? It didn't work at all.

And the Eighth Route Army will also use a similar small-caliber mortar to focus on the discovery of the devil's technical arms, once the devil's machine gun or grenadier into the front of the position within 500 meters, a large number of shells will be smashed over, sometimes a heavy machine gun will attract more than a dozen shells, God knows where the Eighth Route Army got so many mortars, you must know that it is the Great Japanese Imperial Army, and there is no luxury to this extent, Brigade Commander Chen can only snicker, because a certain guy has promised, as long as the underground palace is opened, About one million rounds of 45mm mortar shells will be supplied to the Eighth Route Army.

In this way, the first attack on the independent mixed third brigade lost more than 90 devils and more than 2,000 imperial troops, and the morale of the troops was beaten down at once, and Lieutenant General Yoshizawa Tadao also put away his contempt for the Eighth Route Army, and called Hirata Ichiro Nakasa, who had been ignored by himself before, to analyze the situation on Laojun Mountain.

It was not until this time that Lieutenant General Yoshizawa Tadao realized that he had encountered a really difficult bone this time, more than 5,000 well-equipped Eighth Route regular troops, cowering in the permanent fortification group of Laojun Mountain, and 10,000 to 20,000 troops of the Eighth Route Army gathered around to respond, this was definitely a campaign-level operation, and his brigade was a sharp blade in the hands of the imperial army, a sharp blade to gather and annihilate the main force of the Eighth Route Army.

So, at the strong request of Tadao Yoshizawa, Lieutenant General Yoshio Shinozuka also sent out another mobile force in his hand that was independently mixed into the Fourth Brigade, and the artillery brigade and the third wing of the Fourth Brigade were directly strengthened to the Yoshizawa Brigade, while the other troops were strengthened to the transportation line from Heyuan to Taiyuan, and made every effort to ensure the supply of materials to the front line, which is why the Yoshizawa Brigade was still full of ammunition after three days of fighting.

On the other hand, Lieutenant General Yoshizawa Tadao also took Heyuan County as the core, built his own security area, and made every effort to sweep away the threatening Eighth Route Army troops in the surrounding area of Laojun Mountain, such as Ding Weixin's regiment, which was besieging Ping'an County, was driven back to the mountains by a brigade and chariot squadron of the devils, and for a time, the situation around Heyuan County was greatly alleviated.

At the same time, Lieutenant General Yoshizawa Tadao also sent a division of the Imperial Association Army out, and began to sweep the surrounding countryside, and captured more than 20,000 young and middle-aged people overnight, and then the devil drove these civilians to start digging in the direction of Laojun Mountain, is there a very familiar feeling, yes, it is geotechnical excavation, but the devil is engaged in a larger scale, more thorough, all of a sudden on the opposite side of Laojun Mountain to open hundreds of tunneling channels, but also drive the people to cut down trees, cover the top of the trench with logs, and then take clay to tamp.

Faced with this situation, Brigade Commander Chen had to order the 772nd Regiment and a regiment of the 1st Column to launch a counter-assault, and at the cost of nearly 1,000 casualties, more than 5,000 people were rescued, but this happened to be in the hands of Yoshizawa Tadao, who was forcing the Eighth Route Army to take the initiative to attack, so that he could consume the other party little by little in the field battle.

Just when Yoshizawa Tadao wanted to repeat his old tricks, the heavy artillery unit of the Eighth Route Army, which had been forbearing, opened fire, 14 122mm guns, 16 75mm guns formed a large artillery group, and suddenly lifted off the Type 92 infantry artillery position that the devil was too far in the front, and destroyed the infantry artillery group that Yoshizawa Tadao had managed to put together at one time, in addition, the field artillery that the devil had not transferred his position also suffered a lot of losses, and both 75mm guns and 105mm guns had losses.

Faced with this situation, Lieutenant General Yoshizawa Tadao had to order the troops to retreat, until they withdrew to the heavy artillery fire of the Eighth Route Army, but a few detachments were placed on the fortification group built by Ichiro Hirata before, for close reconnaissance, no way, although in this case should choose to fight with the Eighth Route Army, but the firepower of the Eighth Route Army was too ferocious, and more than a dozen 122mm heavy guns were used as soon as they came up, and the four 99-type 105mm guns in his hand did not have any advantage at all, and he could not afford to lose, You must know that the devil's brigade level is rarely equipped with artillery above 75 mm caliber, and these four 99-type 105mm guns were only equipped to him by using his personal connections.

The only consolation is that because of the imperial army and aviation, the shelling of the Eighth Route Army did not last long, otherwise, it is estimated that Lieutenant General Yoshizawa Tadao will not even be able to complete the withdrawal of the troops, there is no way, who makes himself not superior in terms of firepower or troops?

As for continuing to drive the people to excavate, forget it, ten kilometers, if the digging is cleared, the imperial army will not dare to use it, isn't that equivalent to letting the Eighth Route Army guard the mouth of the tunnel to name the imperial army?

But Yoshizawa Tadao didn't want to let these people go like this, and after the afternoon of the same day, he sent a brigade of devils with a squadron of 94 tanks to drive tens of thousands of people to Laojun Mountain to attack, yes, this guy just wants to use the common people as a meat shield to force the Eighth Route Army to submit. In the opinion of Lieutenant General Tadao Yoshizawa, as long as the soldiers of the Imperial Army are allowed to rush to the position, the end of the Eighth Route Army will come.

But before Lieutenant General Tadao Yoshizawa had a good dream, the Eighth Route Army dispatched again, and the Eighth Route Army dispatched 21 tanks at one time, with a battalion of infantry, and suddenly inserted themselves into the flank of the Japanese army and launched an attack on the Japanese army.

The devils were obviously prepared for the appearance of the Eighth Route Army, although the appearance of the tank troops of the Eighth Route Army was unexpected, but the well-trained devils still adjusted at the first time, with the tank squadron as the core, launched a hedge against the Eighth Route Army, and the devil fighters in the sky also lowered their altitude and began to prepare for the attack, but the distance between the two armies was very close, and neither the devil aviation nor the artillery dared to fire easily, for fear of causing accidental damage.

Of course, the devil brigade on the ground also felt that there was no need for reinforcements, and the aviation and artillery would only affect their performance, and he wanted to annihilate the elite tank battalion of the Eighth Route Army in one fell swoop in front of His Excellency the brigade commander, and re-establish the confidence of the imperial army, but the reality soon made the devil captain realize that he was wrong.

These Type 94 tanks equipped by the 3rd Brigade of the Japanese Independent Mixed Brigade are all early models. The weapon is only a Type 91 6.5mm machine gun, and there are no armor-piercing bullets, so it can be said that a little armor-piercing ability can also bully the infantry, and those CV-33 tanks in the hands of the Eighth Route Army, although they are also garbage, can be deployed in North Africa for a long time, they are equipped with tracer armor-piercing shells, so in just one round, before those Type 94 tanks can run, they have already fallen on their stomachs, leaving only those devil soldiers with 38 big covers still stunned there.

But the captain of the devil still did not hesitate, brandished the command knife and commanded the troops to kill, what happened to the imperial army without tanks, when the battle of Songhu was in the past, the tanks of the imperial army were not good, but it was not to kill the Chinese army, as long as it can be pasted, the imperial army will definitely be able to win.

But soon, the Eighth Route Army once again taught the devil to be a man, only to see that the soldiers of the Eighth Route Army were a Beretta M1918 per person, and the overwhelming rain of bullets swept over at once, and did not give the devil a chance to get close to the tank unit at all, and suddenly killed a pair on the front of the devil's brigade, and then did not stop, and quickly ran towards a nearby wood, just kidding, there are still devil planes in the sky, continue to entangle with you, and wait for the final roll call by your plane?

Sure enough, the devil fighter who had been hovering in the sky found an opportunity, and immediately pounced, and began to strafe at the tank below, and the heart of Brigade Commander Chen, who was watching the battle on the mountain, was tense at that time, you must know that no matter which battlefield, the tank is an absolute disadvantage to the aircraft, but he soon found that his worries seemed to be superfluous, compared to the thin top armor of the CV-33, the power of the 7.7mm machine gun on the devil fighter is even more limited, as long as it is not particularly close, it cannot hurt the tank.

It wasn't until the tank troops of our army withdrew into the grove that the devil's aviation destroyed two tanks, you must know that it was dozens of fighters, such a record, you show it to those people in the noodle country, they can't believe it, CV-33 hard resistance fighters, or no air defense, do you think I'm a fool?

It's just that the infantry attached to the tank unit suffered considerable losses in the battle, and a main battalion of 600 people suffered close to 300 casualties at once, which is equivalent to being disabled. Of course, the devil's brigade was even worse, at the moment when the devil's fighters concentrated fire on our tank unit, the artillery unit took the opportunity to launch an attack and carried out a fire coverage of the remnants of the devil, and finally when the devil received the troops, an infantry brigade of 700 people, with less than 100 people left, suffered the greatest loss since the beginning of the war.

Surprisingly, there is a backhand on the devil's side, it turned out that early in the morning, Hirata Ichiro Nakazo arranged for the traitors of the Heyuan County special service team to blend into the ranks of the people, and then the people fled, these spies followed tens of thousands of people to be picked up by the Eighth Route Army, that night, the devils launched a brigade-scale night attack, in the process, hundreds of spies took the opportunity to make trouble, causing a lot of losses to our army, one of the spies even blew up a bunch of hundreds of 122mm high-explosive grenades.

But in the face of the absolute superiority of the Eighth Route Army, the devil's mighty night attack still failed to succeed in the end, after all, the devil's plane could not be lifted into the air at night, and against the Eighth Route Army, the devil had no chance of winning, so he could only consume the spies planted by Ichiro Hirata in vain.