In the autumn of 1940, the Long Island Brigade of the Japanese Army in Tai'an dispatched a large group of Japanese troops and puppet troops totaling more than 1,000 people to look for the 2nd Regiment of the Eighth Route Army in Luzhong to "fight to the death".
Once, Wu Ruilin, the commander of the 2nd Regiment, took the regimental headquarters and two battalions to Yang Jiaheng, but the Japanese army found out on the way. At dawn the next day, the Japanese army followed the 2nd Regiment and pounced on the Yang family. Its vanguard was a puppet army, but when crossing the river, it was ambushed by a company of the Eighth Route Army, and one was suppressed on the river beach, and more than 10 people were captured by the Eighth Route Army.
However, the Japanese army insisted on tracking the 2 regiments in order to achieve a decisive battle.

When they broke into yangjiaheng village, they found that the Eighth Route Army had taken control of Yangjiakun Mountain, and they were trapped in the middle of the east and west mountains, and they could not retreat, so they had to launch firepower and attack the Yangjiakun mountain.
The commanding heights on the mountain are more than 300 meters, the mountain is steep, steep slopes on three sides, and there is a stone cottage on the top of the mountain, the slope is unobstructed, it is a Jedi that is easy to defend and difficult to attack. The main force of the 2nd Battalion was entrenched here. The Japanese bombarded the cottage with artillery, but the top of the hill was narrow, and most of the shells hit the flank of the mountain, posing little threat to the Eighth Route Army. The Japanese army switched to infantry guns and heavy machine guns to shoot upwards at the stone village, causing the debris to fly and sparks to splash around, but there was no figure of the Eighth Route Army inside and outside the wall.
So the Japanese bravely climbed up the mountain.
However, the closer you are to the top of the mountain, the steeper the mountain, with a slope of more than 45 degrees. As the Japanese approached 100 meters, the ambushed Eighth Route Army suddenly opened fire, and for a moment the bullets rained down the hill and blossomed among the enemy groups.
The Japanese rolled down row after row.
In less than 10 minutes, few of the first japanese commandos could stand up, and 3 military dogs were killed on the spot.
Only 3 members of the Eighth Route Army were slightly injured.
After that, the Japanese army rushed 3 times in a row, the number of people who could attack was reduced one time at a time, the distance from the charge was shortened more and more each time, and finally even the abandoned wounded soldiers and corpses did not dare to pull.
In the afternoon, the Japanese turned to the Three Mountains area southwest of Yangjiaheng to test the attack.
It is an open undulating area, and the slope to the east is full of bare slope arable land. From time to time, there are crowds of people walking around on the top of the mountain, coming and going. The Japanese leaders concluded that it was the "Tu Ba Road", so they launched an attack from here and detoured to Yangjiakun Mountain.
The Japanese suppressed Yangjiakun Mountain with a small amount of firepower, and the infantry attacked the three mountains, and two or three hundred people rushed up. Unexpectedly, a human wall suddenly appeared between the slopes, and the fire of machine guns and rifles suddenly covered like Tarzan pressing down.
It turned out that there were several deep rain cracks on the slopes, and the terrain was very hidden and accessible. Commander Wu Ruilin had already ambushed a crack army here.
As soon as the battle began, hordes of Japanese troops were suppressed in an open field hundreds of meters wide, beaten alive. Unwillingly, they deployed fire cover several times and risked death to make an impact, but the result was a total of casualties and abandoned halfway.
The battle continued until dawn the next day.
Suddenly, the Japanese army retreated toward Laiwu.
In this battle, the 2nd Regiment of Luzhong killed and wounded more than 200 Japanese troops and destroyed three Japanese artillery pieces.
Why did the Japanese suddenly retreat?
After the war, Wu Ruilin and others learned that in the night battle, a Japanese squadron leader named Ikeda was killed. During the night, Ikeda was killed by a sniper company of the 2nd Regiment with a horse and a shuttle of bullets.
This was a very unexpected result of the battle.
Ikeda was killed, but it became the number one good news inside and outside Laiwu City, and men, women and children rushed to tell each other. A section chief of the Laiwu County Maintenance Association and a president of the District Maintenance Association also quietly congratulated the Eighth Route Army, saying that it was a great harm to the people of Laiwu.
Why did the traitors of the Maintenance Association also come to congratulate him?
It turned out that this Ikeda was very fierce and cruel, killing people at every turn, and countless compatriots who were slashed by his knife and buried alive were countless. He also often whipped his officers and soldiers. For the traitors of the maintenance association, they were even more angry, and they were shot at every turn, and several traitors of the maintenance association in Laiwu were killed by him in a fit of anger.