Sun Weiguo planned to fight the mobile troops of the Japanese army in Dai County, so as to mobilize the troops of the 109th and 26th divisions of the Japanese army in the north of Wutai County, so as to separate the two divisions and create fighters.

However, Ishihara Waner, who was invited to the North China Front Headquarters to assist in commanding the operation, saw through Sun Weiguo's plan at a glance, and under the suggestion of Terauchi Shouichi Ishihara Waner, he did not let the troops of the 109th Division and the 26th Division return to Daixian, but continued to let them launch a fierce attack on Hutou Mountain and Siling Mountain.

According to the current situation of various departments, Sun Weiguo readjusted his deployment, and he was ready to concentrate superior forces and first defeat the mobile troops of the Japanese army in Daixian.

At half past four o'clock in the afternoon of September 22, the Honor Fourth Regiment transferred the first armored battalion, heavy artillery battalion, and mechanized artillery battalion, and the Honor Fifth Regiment transferred the cavalry artillery battalion and machine gun company, and the 359th Brigade transferred the 718th Regiment troops to begin a fierce attack on the county seat of Daixian.

The Japanese army has more than 300 cavalry, more than 20 armored vehicles and tanks in the county seat of Daixian, but it is obvious that in addition to tanks and armored vehicles, the cavalry troops to defend the county seat are obviously inappropriate, but these more than 300 cavalry troops are the main force of the current garrison county.

The Japanese air force provided good air cover for the mobile troops in Daixian, and four bombers continued to appear in the skies over Daixian, and when the bombers discovered the troops of the Eighth Route Army, these four bombers immediately began to bomb, but the Japanese bombing brought very limited blows to the Eighth Route Army.

In order to prevent the Japanese bombardment from the air, the various departments have been clearly instructed that they will disperse their actions during the attack, and with the attack on the county seat of Daixian by the various departments, the Japanese bombers will not play any role, if they continue to bomb, then the devil soldiers in the county will be hit.

Five Type 89 tanks of the 1st Armored Battalion helped to open the gate of Dai County in the heavy artillery battalion, and the five tanks quickly drove into the county seat, and hundreds of officers and soldiers of a battalion of the 718 Regiment followed closely behind the tanks, and after half an hour of fighting, the various units easily entered the county town, and they began to start a fierce battle with the devil soldiers stationed in the county town.

However, the Japanese were at a clear disadvantage, and they were only able to rely on tanks and armored vehicles to hide themselves and inflict some casualties on the infantry.

As artillery began to be transported directly to the county, the tanks and armored vehicles of the devil soldiers began to become the focus of artillery strikes.

At half past six in the afternoon, more than 300 cavalry of the Japanese mobile unit in Daixian County were annihilated, more than 200 were annihilated, and less than 7 of the more than 20 tanks and armored vehicles remained.

Matsumoto Kurazang, the commander of the cavalry wing of the 1st Division of the Japanese Army, was hit by a 105MM cannon shell of the heavy artillery battalion during the transfer, and Matsumoto Kurazang did not even have a complete body left.

At half past seven o'clock in the evening, the 4th Regiment of Honor, the 5th Regiment of Honor, and the 359th Brigade of the 120th Division captured Dai County and completely annihilated the Japanese mobile troops in Dai County.

The Japanese mobile units were completely annihilated, which meant that the Japanese army lost a unit capable of rapid mobility, while the 120th Division and the troops of the Shanxi-Chahar-Hebei Military Region could naturally strike at the Japanese supply lines.

At present, the Japanese army fighting in Wutai County has troops from the First Division, the 114th Division, the 109th Division, and the 26th Division, and these four divisions have more than 80,000 troops.

The supply of these four divisions was completed through the northwest of Shanxi and the central Jinzhong region, the northwest of Shanxi mainly supplemented the 109th and 26th divisions of the Japanese army, and the Jinzhong supplemented the first division and the 114th division.

The troops of the 120th Division had long had the idea of fighting the Japanese transport troops, but Division Commander He knew that the Japanese army had transferred hundreds of cavalry and nearly 100 tanks and armored vehicles, and Division Commander He was worried that his troops would be bitten by the Japanese army, so he did not take action for a long time.

But now that the Japanese mobile unit has been defeated, Division Commander He immediately ordered the troops of the 358th Brigade to start striking at the Japanese supply lines.

At nine o'clock in the evening of September 22, 1938, the headquarters of the Honorary Second Division telegraphed the General Headquarters of the Eighth Route Army, the Headquarters of the Commander of the Second Theater, the First Division of the Honorary Second Division of the Eighth Route Army and the 1st Division of the Eighth Route Army to completely annihilate the cavalry wing of the 1st Division of the Japanese Army, two tank squadrons, a 114th Division Cavalry Brigade, a tank squadron, a 110th Division Cavalry Brigade, a tank squadron, a 21st Division search team, an armored convoy, a 26th Division search team, and an armored convoy.

In this operation, more than 900 Japanese cavalry were annihilated, more than 90 Japanese tanks and armored vehicles were destroyed, two Japanese infantry squadrons were annihilated, and a large number of trucks were captured.

Among them, the more representative is the total annihilation of the cavalry wing of the 1st division of the Japanese army, which is the 2nd division of honor after the annihilation of the independent mixed second brigade and independent garrison after the formation of the annihilation of the Japanese army, and the cavalry wing of the 1st division was completely annihilated, but the influence of this is far higher than the total annihilation of the Japanese independent mixed second brigade and independent garrison.

With the telegram of the Eighth Route Army Headquarters and the Second Theater Commander's Headquarters of the Honorable Second Division, the Headquarters of the Eighth Route Army and the Headquarters of the Second Theater Commander immediately began to get busy for a while.

The head of the headquarters knew that Sun Weiguo's Honorary Second Division could fight well, but they never dreamed that Sun Weiguo's troops would achieve such a record in a short period of time.

Mr. Zhu and Vice President Peng sent a telegram to Sun Weiguo as soon as possible, they specially commended Sun Weiguo, and at the same time, the two elders of the headquarters always gave Sun Weiguo a privilege, that is, when Sun Weiguo wanted to take action, he could take action without asking for instructions.

When Yan Xishan, commander of the Second Theater of Operations, received the telegram, he was really taken aback.

Yan Xishan completely regarded himself as a spectator for the decisive battle between the Eighth Route Army and the Japanese troops this time, and he was unwilling to send troops to reinforce the troops of the Eighth Route Army, nor was he willing to bear any responsibility; after he forwarded several telegrams from the Military Commission to Sun Weiguo of the Honorary Second Division, he refused to get in touch with the troops of the Honorary Second Division on the grounds that Sun Weiguo was disobedient.

But now, the troops of the Honorary Second Division have won several battles one after another, which has to make Yan Xishan pay attention to this matter.

All the troops of the Eighth Route Army are directly under the jurisdiction of the Military Commission, but the Eighth Route Army is also in the battle sequence of the second theater, and now that the troops of the Eighth Route Army have won such a battle, Yan Xishan feels that he can use this matter to add glory to his face, and it is not the first time he has done such a thing.