Subsequently, no matter how the 21st Division attacked, Yang Chengwu's troops and horses were just touching and leaving with them, and they typically took advantage of it and ran.

This style of fighting was conceived by merging General Yang Chengwu's guerrilla theory with Han Yunhua's theory of positional warfare in which the enemy's vital forces were killed, and it was a kind of mutated type of guerrilla warfare. Yang Chengwu's tactics made the commander of the 21st Division, Lieutenant General Washzu Matsudaira, very helpless, although Lieutenant General Washizu Matsudaira was also a division commander, but he had some differences with Gu Shoufu and Itagaki Seishiro and others, first of all, his 21st Division was different from the 5th Division and the 6th Division. The 21st Division was formed in Hirosaki, Japan, on April 4, 1938, incorporated into the North China Front battle sequence on June 15, and arrived in North China in mid-March. The status or responsibility of the 21st Division in the North China Front is a three-unit division dedicated to the garrison, under the jurisdiction of the 21st Infantry Brigade (62nd, 82nd, and 83rd Infantry Wings). Divisional Search Team, 51st Mountain Artillery Wing, 21st Engineer Wing, 21st Light and Heavy Infantry Wing, Signal Team, Health Team, 1st and 2nd Field Hospitals.

The 21st Division was the earliest division of the Japanese army with a three-unit system, and this kind of division was often formed by directly expanding the reserve units of elite units or directly transferring one or two wings from elite field divisions. This kind of division can only be regarded as a third-rate unit in the battle sequence of the Japanese army, and its combat effectiveness is simply not comparable with that of a first-class permanent division.

In addition, the number of such divisions is often very small, just like the current 21st Division, which has only 14,000 people, and even the 5th Division is generally less than that, so the casualties of 1,300 people have made Lieutenant General Washizu Matsudaira a little unbearable. This has not yet seen that Zhangbei County has already lost one-tenth of its combat effectiveness, so how can it be fought in the future. What's more important is that the kid Yamashita Fengwen is still next to him, and this kind of casualty will definitely be seen as a joke by that kid.

However, Yang Chengwu will not give him this opportunity, Yang Chengwu built a total of 38 defense lines on the road to Zhangbei County, after the previous line of defense was broken by the Japanese army, all the troops defending the position retreated to the latter line of defense, and so on, and in the end all the troops will retreat to Zhangbei County. Yang Chengwu's purpose in doing this was mainly to strike at the sharp spirit of the Japanese army, and at the same time, he also had the intention of killing and injuring the living forces of the Japanese army.

In this way, the battle between the Inner Mongolia Military Region and the Japanese army was basically divided into three battlefields, the first was the Jining battlefield with the 6th and 26th Divisions under the jurisdiction of the Japanese army stationed in Mongolia as the main force; the second is the Zhangbei Battlefield with the 21st Division of the Japanese Army and the Yamashita Brigade as the main force; The third is the Northern Hebei Battlefield where the main force of the Inner Mongolia Military Region led by Han Yunhua attacked.

Among these three battlefields, the Japanese army in the Jining battlefield has an absolute advantage, and now it has occupied the three banner counties of Zhuozishan, Fengzhen, and the front banner of the right wing of Chahar, and Xinghe County, which was the starting point of Han Yunhua's department, has also been seriously threatened by the Japanese army. In the Zhangbei battlefield, the Japanese army is also in an offensive situation, although Yang Chengwu's troops have an absolute advantage in terms of troops, but in terms of combat effectiveness, the two sides can be said to be chess opponents will meet good talents, but on the whole, the Zhangbei battlefield or the Japanese army occupies the initiative. In the northern Hebei battlefield, Han Yunhua's department has an absolute advantage, so far, Han Yunhua's department occupies Chicheng, Fengning, Guyuan three counties, and the main force of the department has moved eastward to the Fengning line.

But as far as the overall battle situation is concerned, Han Yunhua's department is undoubtedly at a disadvantage, not to mention anything else, although the two sides each occupy each other's three counties, but you must know that Han Yunhua occupies only three small counties that are not very important to the Japanese army, which can be seen from the fact that the Japanese army has set up less than two brigades of defenders in these three counties. Looking back, the Japanese army occupied the hinterland of the base area that Han Yunhua had painstakingly operated for nearly ten months, and the comparison between the two sides shows that the current war situation is really not optimistic.

However, fortunately, the North China Front Army has become very cautious under the continuous attacks of Han Yunhua's headquarters, and it is no longer rampant in the past, and a small squad of the Japanese army dared to go out of the city to sweep in the past, but now the Japanese army does not dare to come out with less than one brigade, and the convoy transporting materials must be escorted by more than one brigade of elite field infantry, so the destruction of the base area is not too serious so far.

Han Yunhua looked at the map and found that the mobile forces that the Japanese army could dispatch were basically attracted, and there were no other devils in the west of Jining except for the garrisons of Guisui (Hohhot City) and Baotou with two wings each, and even if there were, it was only one or two squadrons in each county town, which was really of little use. There are still quite a few troops directly under the North China Front Headquarters, but on the one hand, these troops have to stay behind the safety of Beiping City, where the North China Front Headquarters of the Japanese Army is located, in case the main force of Han Yunhua's headquarters attacks Beiping City, after all, the main force of Han Yunhua's headquarters is really a little close to Beiping City, and on the other hand, the troops directly under the Front Army still have to maintain the daily security of Beiping, Tianjin and other places, and they cannot be transferred out to attack Han Yunhua. However, there are still more than 8,000 troops in Chengde City, but these troops are used to resist the main force of Han Yunhua's department and prevent the main force of Han Yunhua's department from advancing eastward, and they cannot be moved for the time being. ,

After analyzing it for a long time, Han Yunhua believed that the time was basically ripe for the Saibei Army Subdivision to capture the two cities of Guisui and Baotou, and as long as the operation was good, the battle situation would undergo a turning point.

However, Han Yunhua did not order Li Dayong to immediately attack the two places of Guisui and Baotou, and there were still many preparations to be made before capturing these two famous cities outside the Saiwai. First of all, Han Yunhua ordered Li Dayong to prepare for battle, and the men and horses of his department should assemble on the periphery of Guisui, but pay attention to concealment, and do not startle the snake. At the same time, Han Yunhua sent another telegram to Shen Yuquan, ordering him, the political commissar of the Military Region, to personally lead the Second Independent Brigade and the large and small units under the command of the Military Region that had developed in Liangcheng and Helin to quickly advance in the direction of Baotou, and also pay attention to concealment. After arriving at the destination, he temporarily hid in the mountains on the outskirts of Baotou and waited for his further orders.

Han Yunhua knew that although the main forces of the Japanese army had been mobilized now, there was still room for maneuver, as long as they quickly got rid of the entanglement of Han Yunhua's troops, the main force of the Japanese army still had the possibility of recapturing Suihe and Baotou, but as long as the Japanese army was completely dragged on these battlefields and they could not get out, then after the Saibei Military Division had thoroughly digested these two super cities and made a certain defensive position, then the battle in Chahar should basically come to an end.

So before that, Han Yunhua also needed to add a fire to the Japanese army, and completely burn the anger of the Japanese army's crazy nature.

Han Yunhua looked at the map, he was going to light this fire in this area of eastern Hebei, Han Yunhua knew that the spark he had sown in the land of eastern Hebei, it was time to ignite the fire. Han Yunhua asked the newspaper operator to immediately send a report to Li Dingguo, ordering him to immediately report on the development of the department.

Besides, after Li Dingguo received the telegram from the old chief Han Yunhua, he immediately sent the materials that had already been sorted out back to Han Yunhua's temporary headquarters.

When Li Dingguo accompanied Han Yunhua to attack eastern Hebei in May, Han Yunhua was left behind in eastern Hebei and ordered him to prepare for the mission of the guerrilla detachment of the Inner Mongolia Military Region in eastern Hebei, while leaving behind his Flying Dragon special operations squadron and a battalion of German-style equipment.

Li Dingguo did not follow Han Yunhua's instructions to develop in Changli, but led his Flying Dragon Special Combat Team to move to Qianxi County. The main reason why Li Dingguo wanted to develop in Qianxi County was that although Changli County was a good place to serve as a base area, Changli had no room for strategic maneuver, and to be precise, the strategic depth was too small, and once it was attacked by the Japanese army by land and sea, there was basically no place to escape. In addition, Changli is too close to Qinhuangdao, a large city in eastern Hebei, and it is really not suitable for the development of the army.

Qianxi County is located in the northeast of Hebei Province, at the southern foot of Yanshan Mountain, at the foot of the Great Wall, 150 kilometers away from Beijing in the west, 130 kilometers away from Qinhuangdao in the east, 130 kilometers away from Chengde in the north, 140 kilometers away from Tianjin in the south, 75 kilometers away from Tangshan, and not far from the Bohai Sea. The east-west distance is 55 kilometers, and the north-south longitudinal distance is 78 kilometers. The total area of the county is 1,939 square kilometers, with a population of 220,000 (1937), and it has jurisdiction over 12 townships and 217 administrative villages.

There are many mountains and hills in Qianxi, the terrain is inclined from northwest to southeast, the average altitude is below 900 meters, the terrain is gentle and the population is large, it is a good place to develop troops, so Li Dingguo and the political commissar of the Feilong Special Operations Squadron discussed it and decided to lead his troops westward to develop in Qianxi County.