At two o'clock in the afternoon, more than 600 cavalry units of the 109th Division of the Japanese Army crossed the Lan River, and the headquarters quickly moved towards Dongcun Town east of Lan County.

Koizumi and Fujiwara quickly followed behind the cavalry unit with four infantry squadrons and two machine gun squadrons, and the Japanese army planned to surprise Arashi Prefecture.

Kiyoshi Okazaki, the commander of the cavalry wing, completely left the infantry behind, and he wanted to quickly enter Dongcun Town, so as to grasp the springboard for attacking Arashi County.

Regarding the progress of the Japanese cavalry wing, Shizaburo Ochiai, chief of staff of the 109th Division, who was in charge of the command operation, was very satisfied.

But the Japanese army did not know that their every move was under the control of the Chinese troops.

On the outskirts of Lan County, prepare the headquarters of the first regiment.

"Regiment commander, the Japanese cavalry is advancing very fast, they are less than four kilometers away from Dongcun Town, and we have no defenders in Dongcun Town at present."

Zhao Lerong, chief of staff of the regiment, came to Sun Weiguo, and he reported with a solemn expression.

Sun Weiguo's gaze was locked on the Dongcun Town on the map, and his eyes exuded a resolute expression.

He clenched his fist again with his right hand, and knocked it fiercely towards Dongcun Town, and he gave an order: "Order the 3rd Cavalry Regiment, the 6th Cavalry Regiment, the reconnaissance company, the armored company, and the 1st Battalion Machine Gun Company to form a mobile unit, and the above units will be commanded by the commander of the 6th Cavalry Regiment Zhao, and the mobile unit will quickly go to Dongcun Town, the combat target, and eat the Japanese detour troops." ”

Sun Wei resolutely gave the order Chinese, and in order to deal with the Japanese army's roundabout troops, Sun Weiguo sent almost all his reserves.

Luo Hongyi, the platoon commander of the communications platoon, quickly conveyed Sun Weiguo's order, and the various units that received Sun Weiguo's order immediately mobilized.

Commander Li of the Third Cavalry Regiment was still left in the regimental headquarters by Sun Weiguo, and he would not let Commander Li return to his troops.

The law of military joint sitting has already begun, and at present, the commander of the Second Theater has given Sun Weiguo the title of commander of urban defense, which has strengthened Sun Weiguo's prestige.

Even if the Jin Sui army troops have some ideas, but if they want to save their heads, they must first complete the combat mission.

What's more, in the Jinsui Army, there are still a few people like Commander Li, and most of the low-level officers and soldiers still have the heart to serve the country.

The Japanese roundabout force consisted of more than 600 cavalry, nearly 800 infantry, more than 100 machine gun shooters and secondary marksmen, and a total strength of more than 1,700 people.

However, the Chinese mobile force has two cavalry regiments, a real face, an armored company, and a machine gun company, with more than 2,000 cavalry and dozens of armored soldiers.

The mobile units have a clear advantage in terms of numbers and weaponry, and this time the combat mobile units have a great chance of victory.

However, Sun Weiguo is not very optimistic, even if he occupies an absolute advantage, for Sun Weiguo, this operation is still a risky operation.

If these troops were Sun Weiguo's troops, he would not have any worries, but this time the main force of the mobile force was composed of two cavalry regiments, and if they made any mistakes, the plan for a decisive battle with the Japanese army would be completely shattered.

"Weiguo, I still suggest that Chief of Staff Zhao be sent over as the deputy commander, with Chief of Staff Zhao here, we can also rest assured here."

Political Commissar Shen Wei came to Sun Weiguo, her eyes looked at Sun Weiguo, and a solemn expression appeared on her face.

Sun Weiguo was an officer who grew up from the local troops of the Eighth Route Army, but Sun Weiguo's tactics were completely different from those of the Eighth Route Army.

In Shen Wei's view, Sun Weiguo will always fight positional warfare that the Eighth Route Army troops are not good at, and when Sun Weiguo adopts sports warfare, he will always choose to fight hard.

If any Eighth Route Army unit was stationed in Lanxian County, when they learned that the Japanese army had more than 1,000 roundabout troops, no commander of the Eighth Route Army would want to eat this Japanese army, even if they had more troops than Sun Weiguo, they would not have such thoughts.

But Sun Weiguo is different, as long as he has a slight advantage, Sun Weiguo will take a hard-fought way to fight a decisive battle with the Japanese army.

"Lan County must be defended, this is our last position, if Lan County is lost, the flank of the 359 Brigade will be directly exposed to the Japanese army. Scholars, qi also. If an army does not have the guts to engage in a head-to-head battle with its enemy, the morale of the troops will never improve.

Political commissar, this time our troops have run out, and we will also take the Jin Sui army to win a battle. Whether or not we can win this decisive battle with the Japanese army will not only affect the 120th Division's operations, but will also directly determine the morale of the Jinsui Army, and will also affect the morale of the Chinese troops fighting on the Jinpu Line. ”

Sun Weiguo was not looking at the map of Shanxi on the table, he glanced at the map of China hanging on the wall, and he said with a solemn expression.

The Second Theater Commander's Department had already forwarded the order of the Chairman of the Military Commission, and Sun Weiguo knew what kind of mission he was shouldering.

The total annihilation of the 119th Wing of the Japanese Army will not only boost the morale of the Jinsui Army and make the Jinsui Army clear that the Japanese army can be defeated, but will also directly affect the morale of the Chinese troops fighting on the Jinpu Line.

"Those who do not seek the overall situation are not enough to seek a domain, and those who do not seek the world are not enough to seek a time. Political commissar, the regiment commander's vision is farther than ours, we will be confused by the gains and losses of the interests in front of us, but the regiment commander will not, I really didn't expect that the regiment commander would have such a vision when he is so young. ”

Zhao Lerong looked at Sun Weiguo in front of him, and he said with admiration on his face.

Shen Wei listened to Sun Weiguo's words, and she showed a relieved expression on her face, she knew very well that Sun Weiguo's ability had surpassed that of generals.

At four o'clock in the afternoon of March 9, 1938, the troops of the 359th Brigade once invaded the city of Lan County, but because the reinforcement troops failed to follow up in time, the troops were driven out by the Japanese army.

The Japanese 26th Division kept urging the troops of the 109th Division to quickly reinforce the past, and the troops of the 109th Division, under the command of Chief of Staff Shizaburo Ochiai, accelerated their advance again.

At a quarter past four, the cavalry wing of the 109th Division was less than a kilometer away from Dongcun Town, and the Japanese cavalry began to wave their sabers and speed up their advance towards the county seat.

However, the Japanese troops did not know that at this time, the mobile troops had already begun to fortify Dongcun Town.

The four companies of the first battalion of the pre-1st regiment had two Type 91 mountain guns, two Type 92 heavy machine guns, four Type 92 infantry guns and four Type 92 heavy machine guns of the armored company were all deployed in Dongcun Town.

As the commander of the mobile unit, Regiment Commander Zhao, gave the battle order, six heavy machine guns, two mountain guns, and four infantry guns began to fire.