When Jin Batian heard the Japanese playing tunnel digging, he was nervous for a while. The retreat he left for **Liang was a tunnel that could only pass by alone for dozens of kilometers to Xinglong County. Because of the ventilation holes, it would be no problem to pass by thousands of people - maybe they could leave some seeds for the Sichuan Army at that time. But if the Japanese discovered it, it would be broken, and the Japanese would appear directly from the city and launch an attack. Now Jin Batian could only notify **Liang took turns to send people to guard the tunnel entrance and hoped that the Japanese would not dig deep enough.

As early as the first day after entering Rehe, Wang Mingzhang ordered the demolition of all the remaining buildings in Chengguan. This kind of thing can only be used to make bunkers for the enemy or fill in moats. Fortunately, even the houses in Chengde City have not been able to live in in the past two years, and Chengguan is no big building.

In this way, the shooting boundary at the city gate will be widened, and the Chengguan position will not leave anything except the staggered trenches for the Japanese. The artillery machine guns at the city gate can also support the Chengguan position, so Wang Mingzhang, in any case, must guard the Chengguan position even if the Japanese continue to dig in tunnels.

The direction of the Japanese attack this time was north, so Wang Mingzhang strengthened the defense of the northern Chengguan position and placed a regiment of soldiers in Beichengguan. East and West Chengguan also placed a regiment of one regiment, and these two regiments could support Beichengguan at any time through connected trenches. As for the southern Chengguan, Wang Mingzhang only placed one battalion - there must be a main attack direction, and the Japanese could still attack from all sides.

This time, the direct troops of Wang Mingzhang's 122nd Division were defending the city gate. Except for this brigade, all three divisions had met the Japanese on the battlefield. This time it was the turn of this brigade. Tang Ying's unit of the 136th Division was responsible for the city gate. This division fought with the Japanese for three days but suffered the least losses. It was no problem to defend the city wall after strengthening light and heavy machine guns and mortars.

The 1st Brigade of the 122nd Division and Fan Shaozeng's troops, which suffered the greatest losses, were both recuperating and training new recruits in the city. Wang Mingzhang made a calculation. He wanted people in Chengde City, and had food and ammunition. He was also very motivated. When the weather was good, he came to support the Air Force three times a day - there was no reason why he couldn't defend it.

After seeing the Chengguan and the city wall positions, Tansuo found that it was still a hard bone. Even if the Chengguan position was dug through the tunnel, it would become a target for machine guns on the city wall. When this Chengguan position was designed, it was not guarded against the outside but not the inside. The outside side was right angled, and the inside side was a gentle angle just inside the view of the heavy machine guns in the city wall at a high level. Theoretically, the Chengguan position could be given up when necessary, and of course it could not be kept for the enemy as a trench.

If you want to win the city gate, you need to suppress the firepower of the city wall. It was not difficult to do this. In the past, the Japanese had airplanes and cannons, but now the control power of these two is the advantage of the Japanese. Of course, the training is several levels higher than the other party, but this has nothing to do with the firepower advantage.

After thinking about it, the old Japanese devil Gu Shoufu finally came up with an idea, using a tank - the Japanese super light tank himself was embarrassed to be included in the tank family, so they were all called combat vehicles. The most famous and most equipped one was the Dou tank.

Although the armor of the bean chariot is super thin - it has been recorded as being penetrated by Maxine machine guns and has poor firepower - some of them are not even equipped with artillery guns, it is finally an infantry support weapon that can theoretically block bullets. After destroying most of the chariots in the army in the first air raid, the remaining chariots were well hidden by the Japanese. But what's the use of always hiding? The weapon must be used to be useful if it is exposed.

The tunnel tactics continue under the killing of artillery bombardment. The Japanese took the human pads without the advantage of firepower. When the tunnel was close to the Chengguan trench, it was connected to the front line, and the price was that the Sichuan army's grenades were thrown into the tunnel from time to time and exploded. But at this time, the Japanese also began to attack the grenades. The soldiers on both sides' eyes were red and bloody. The broken limbs and arms were broken, grenades and shells were flying in the air, and life dissipated in the air.

One by one, the companies carried grenade boxes into the frontier positions. After distributing the grenades, they did not retreat. They directly pulled the fuse and the Japanese. Chuanwazi, who was thinking quickly, remembered that he could use the wooden boards all over the floor, so the wooden boards were dismantled and inserted into the trenches and grenades. Everyone confirmed that this still had some effect.

After the routine bombing early this morning, the Japanese hurriedly dug out some buried chariots and drove towards Beichengguan. This time, each A-level division was equipped with a chariot squadron, each chariot squadron was equipped with nine bean chariots (Type 94 tanks) and a ** medium tank. Originally, sixty tanks were considered very powerful to the Japanese. Unfortunately, they were not hidden in time when they were bombed for the first time, and more than forty tanks were buried. These days, the Japanese also repaired some parts while the air strikes were interrupted. The parts were made by the way of patching together, but now there are only thirty-six of them that can be driven.

The commander-in-chief of the Japanese commander-in-chief, Yanagawa Heisuke, reorganized the thirty-six chariots into three chariot squadrons, and handed over twelve of them to command the command of the Sixth Division, the head of the 6th Division, who had already taken the front line, to prove his command ability.

In order to let the chariots cross the trenches, the Japanese built some temporary passages in front of them. However, the chariot was so loud that the blind man heard it. The chariot passed through the artillery area of ​​the mortar, and only one chariot was unlucky and was affected by the explosion of the curved shells. As the chariot drove closer and closer, more than a dozen 20 mm double-unit anti-aircraft cannons outside the North City Gate were pulled and pushed out by Sichuan soldiers. This thing was originally used to fight Japanese planes, but it has not been driven yet. I heard that the Japanese chariots came up, so there was no reason to not show up.

More than a dozen double-unit anti-aircraft guns were changed to flat fire. The dense rain of fire broke the thin armor of the Japanese chariot, and the members of the chariot were either killed or injured. Suddenly they were hit, and the Japanese chariot had thought of other ways, such as evasion, etc., but can you still be able to drive the bullets of the machine gun with such a big target?

After a while, all twelve chariots fell into bed, and two of them caught fire and exploded. Four anti-aircraft guns were left near the city gate, and the remaining anti-aircraft guns were pulled back to the city or to other positions.

Tani Suo also fired and ordered the heavy machine gunners and the heavy machine gunners on the city wall to suppress the fire. The Type 92 heavy machine gun had no baffle. It didn't take long for Maxine to shoot with the baffle, and the Japanese machine gunners began to change one by one. After observing Tani Suo's casualties between the machine gunners on both sides, this was a ferocious loss to throw grenades.

However, it is not enough to not suppress the firepower of the city wall. Sometimes the business that suffers losses must be carried out. Taking advantage of the firepower on the city wall being attracted by the Japanese machine gunners, the Japanese began their first charge against the Chengguan position.
Chapter completed!