After the outbreak of the War of Resistance Against Japanese Aggression, in order to give full play to the superiority of our army's guerrilla warfare, after the Battle of Pingxingguan, the main force of the 115th Division went south to the southwest of Jin, and the deputy division commander Nie Rongzhen led an independent regiment, a cavalry battalion, and about 3,000 people, stayed in the Wutaishan area to create the Jin-Cha-Ji base area, and the main force went to the Lüliang Mountain area to fight under the leadership of acting division commanders Chen Guang and Luo Ronghuan.
Then, in early 1939, Luo Ronghuan and Chen Guang led the main force into Shandong and severely damaged the Japanese puppet army. Leading the troops of the 115th Division, fighting side by side with the Shandong Column of the Eighth Route Army composed of the Shandong People's Anti-Japanese Uprising, mobilizing the masses, establishing an anti-Japanese democratic regime, consolidating and expanding the anti-Japanese base areas, after several major battles, our army finally gained a firm foothold in Shandong.

In 1914, more than 50,000 Japanese puppet troops swept up, and the headquarters of the 115th Division and the Shandong Branch were surrounded by Japanese puppet troops, the situation was very grim, and the enemy army wanted to completely eliminate the anti-Japanese base areas.
After a few days of fighting, our army led the personnel of the organs to a small village near Liutian, where a meeting was held to discuss the next direction to break through, and Luo Ronghuan finally chose to break through to the south and take it away near the Yimeng Mountains.
Subsequently, Luo Ronghuan personally led the command post and the special service battalion to fight against the enemy, and began to hide with the enemy in the Yimeng Mountains, so that the main force could find an opportunity to annihilate the enemy. Luo Ronghuan maintained an illusion that the other side could catch up, and many Japanese troops followed them in circles, only to wait for them to make a mistake so that they could catch them, but although Luo Ronghuan led the troops to danger, he was always able to escape the disaster and deal with the enemy.
However, such a move is very dangerous, and if something goes wrong, it is easy to be eaten as "fish bait", but the situation at that time was that the enemy's strength was very strong, and only in this way could our army use its living strength to destroy the enemy and carry out better maneuvers.
Once they had just arrived at a village, ready to stop and rest, the sentry reported that the enemy had been chasing, just not far away, Luo Ronghuan had to immediately lead the team away from the village for transfer, just out of the village not far, they encountered a river, there is a very narrow wooden bridge above the river, the personnel move very slowly, but there are hundreds of troops under their command, and the enemy is behind them, choose to walk like this Before the team is finished, the enemy catches up, Luo Ronghuan thinks this is not the way, he carefully observed the flowing river, Choose to call a combat staff officer and ask him to go down into the river and test how deep the water is. The combat staff officer went to the river and found that although the water was very cold, it was not urgent, and the water was not deep, and he cautiously followed the small bridge, all the way to the river, and the water was only waist deep.
He crossed the river to indicate that he could cross it, and Luo Ronghuan immediately ordered all his men to change to disciples, so everyone waded across the river. After crossing the river, some sappers proposed that we blow up the bridge, right? But Luo Ronghuan shook his head and said no, leaving him behind, and asking people to quickly clean the footprints of the two places by the river and erase those traces. Someone already understood Luo Ronghuan's intentions.
After cleaning up the traces of the river, Luo Ronghuan led the large troops to go first, and the Japanese army chased after them to the river, saw several people behind Luo Ronghuan's troops, and immediately opened fire, and the few fighters who swept away the traces began to block the enemy on the spot, and although the enemy saw the rear of Luo Ronghuan's troops, he still could not catch up with Luo Ronghuan. The first thought of the Japanese army after seeing the bridge was also to cross the bridge, but the bridge was very narrow, could not expand the troops, could not cross the river, and Luo Ronghuan's soldiers, as long as they shot bullets at the people on the bridge, the Japanese army did not understand at first, or chose to cross the river from the bridge, so it was delayed for a long time, Luo Ronghuan easily stopped the Japanese army.
Luo Ronghuan's troops thus pulled away from the Japanese army for a considerable distance, and everyone understood Luo Ronghuan's intentions at this time, if the bridge is demolished, the enemy will boldly choose to experiment with the enemy, and will also increase the progress of the enemy crossing the river, through the confusion of that bridge, the enemy will fall into the misunderstanding of thinking, choose to cross the river from the bridge, delay the time on the opposite side, and finally be able to let our army open the gap with the other side very calmly.
In the end, Luo Ronghuan's troops arrived at Wanggou in the northeast of Linyi City, escaped the encirclement of the Japanese army, everyone was tired for a day, when resting, there were foreign reporters with the army called Heber, who were writing relevant manuscripts, and our army also had a newspaper personnel sorting out the manuscripts, when he saw Luo Ronghuan's article, there was a sentence of "the enemy is advancing and I am advancing", he chose to change "the enemy enters me" to "the enemy advances and I retreat", but Luo Ronghuan still changed it after reading it, a word difference, but it is completely different, this is the tactic used by Luo Ronghuan. It is necessary to win the initiative of our own side, preserve our own strength, and "turn" to the rear of the enemy, so that we can disrupt the enemy's deployment, develop and strengthen our strength, and thus achieve the goal of smashing the enemy's "sweep."