Liu Zhanxiong temporarily blocked the reinforcements of the Japanese army in the area from Xianghe to Tongzhou, but with the arrival of a large number of Japanese troops in the 6th Division and the 10th Division, the 5th, 6th, 10th, and 20th Divisions were already in the area of Pingjin and Pingsui Road, and the 1st and 11th Brigades were independently mixed, and one or all of the three garrison brigades and regiments were put into operation. The technical arms of the Japanese army that followed these Japanese troops rushed to include the 1st Brigade of the Field Heavy Artillery, which had 36 75MM field guns of the 3rd Wing of the Field Artillery and 24 150MM howitzers of the 2nd and 150mm Wings of the Field Heavy Artillery.

The 2nd Brigade of the Field Heavy Artillery has an additional 24 75mm mountain artillery wing than the 1st Brigade.

1st and 2nd brigades of separate siege heavy artillery. 4 EACH 240MM HOWITZERS, 3RD AND 5TH MORTAR BATTALIONS AND 12 SQUADRONS OF FIELD ANTI-AIRCRAFT GUNS.

The 4th Brigade of Independent Heavy Machine Guns, the 4th and 6th Wings of Independent Engineers. , 2nd Wing of the Railway Corps.

The 1st and 2nd independent tanks, and 3 squadrons of independent light tanks, plus the former Chiba Hirakawa tank wing. There are nearly 270 tanks in total, nearly one-third more than at the beginning of the war of aggression against China in history. It was only in the fire with the Northwest Army that it also lost nearly a third, and it was beaten back to its original shape.

After the Japanese Kwantung Army approved its request to participate in the Battle of North China and attack Chasui with the approval of the General Staff Headquarters. Adjustments were also made quickly, with Lieutenant General Hideki Tojo, chief of staff of the Kwantung Army, as commander. With the successive entry of the 6th and 10th Divisions into the North China Battlefield, the 1st Brigade of the Independent Mixed Brigade of Sakai Hoji was reorganized, and the 2nd Brigade was returned to the original structure of the Kwantung Army and the 15th Brigade was formed with the Mixed Brigade.

4 squadrons of reconnaissance aircraft under the jurisdiction. 3 squadrons each of fighters and bombers. 3 flight groups of the 2nd squadron of heavy bombers. The formation of the Chahar Dispatch Corps, also known as the Mongolian Xinjiang Corps.

Compared with the Pingjin front, where the situation was once grim, the Pingsui Road at this time was even more critical, because the Northwest Air Force was not as strong as the Japanese army, although the Pingsui Road was important, the 2nd Army fighting in Pingjin was even more important, and in the tragic war of attrition, the Northwest Army could only barely support the Japanese planes bombing in Pingjin. As for Pingsui Road. It was only a symbolic dispatch of a squadron of fighters, although it also shot down several Japanese reconnaissance planes and bombers, but it was useless. Due to the bombing of Japanese planes, the transportation capacity of Pingsui Road was greatly weakened, and some troops could only walk, resulting in a great delay in arriving at the combat site, and the strength of the frontal guard was naturally weakened.

The 2nd Mixed Brigade of the Japanese Army and the Lining Army fought repeatedly for the Longhutai Heights at Nankou Station, and the main force of the 2nd Mixed Brigade of the Japanese Army attacked the defenders of Nankou with the support of aircraft, artillery, and tanks. Another brigade, the Sakata detachment, attacked the Great Wall line in the area west of Nanguchi Town. And with a feint at the mouth of victory. The 529th Regiment of the defenders of the 89th Division at Nankou held out and fought fiercely for six days with the superior Japanese troops.

The 5th Division, which had assembled south of Changping, and the 1st Division of Tang Enbo's 4th Division fought fiercely at Hengling on the Great Wall line. Tang Enbo contacted Yan Xishan and then took the 4th. The 21st, 89th, 84th, and 94th divisions and Wu Shaozhou's detachment not only held their original positions, but also drew a part of their forces to attack the Japanese troops in front of them. The goal of containing the Japanese army and restoring its original position was achieved, but due to the ineffective operation of Liu Ruming of the 143rd Division, in only one day, the Japanese Kwantung Army's Chasui Corps captured Shenweitai and Hannoverberg on the Outer Great Wall, causing the situation in Zhangjiakou to take a sharp turn for the worse.

Under the fierce fighting for several days, the defenders of Tang Enbo suffered heavy casualties and were forced to order to shorten the battle line, and the situation of Tang Enbo's 13th Army was critical. After discovering that Wei Lihuang led the 14th Army to the north to reinforce the battlements, he immediately sent the 36th Brigade of the 6th Division to form the Niudao Detachment and entered the area west of Mentougou to block the attack.

During the northward advance of the 83rd Division, it encountered the Japanese Ushijima detachment at Qianjuntai, and immediately entered the battle, and fought fiercely for two days, except for the 83rd Division, which left four battalions to continue to fight the Japanese army at Qianjuntai, the main force continued to advance northward. However, when entering the riverside city, it was blocked by the flood of the Yongding River, so it diverted to Qingbaishi and advanced to the west side of the village. and defeated the Ushijima detachment, but the advance of the 14th Army could not catch up with the speed of the Japanese attack. Tang Enbo fell into the encirclement of the Japanese army, but fortunately, Wei Lihuang's reinforcements contained a large number of Japanese troops, so that Tang Enbo was able to escape from the Japanese encirclement. Although Fu Zuoyi led his army to the aid of Nankou and inflicted considerable casualties on the Japanese army, he failed to regain the lost position. Liu Ruming's subordinates, who were ineffective in combat, retreated to Tianzhen and Wei County. There were not many unexpected losses of Zhangjiakou, and the Pingsui Railway east of Zhangjiakou and the area north of it were completely controlled by the Japanese army.

"Kill!" The main forces of the 37th and 38th Divisions finally gathered together, and after three days of hard fighting, they finally stepped on the last position of the Mutian Wing. The shouts of thousands of soldiers gathered together.

The Japanese army was by no means smooth sailing on the battlefield, because the surprise reinforcements were unable to break through the blockade of Liu Zhanxiong's 3rd Army, and the Mu Tian Wing, which lacked sufficient support to support the sway, was under the overwhelming artillery fire, and few Japanese soldiers who were killed could find intact corpses.

Thousands of officers and men of the 29th Army, who were anxious for revenge, were strangled together with less than 1,000 Japanese soldiers who had been suffering for several days. The bayonet battle of the Japanese army was again elite, and at this time the fighting strength was exhausted for a long time, although it was still tenacious, but the resistance at this time was already so weak. The main force of the 37th and 38th divisions besieged the Mutian Wing for several days, and his face was also hot, after hearing that the main force had been strangled with the Japanese army, whether it was Feng Zhi'an, Zhang Zizhong, or Song Zheyuan who was sitting in Beiping, they couldn't help but breathe a sigh of relief, after all, the main force of an army surrounded the lone Japanese army and fought less than one wing, if it was peacetime, the 29th Army might not be able to eat the strength of a wing of the Japanese army in a short period of time, but this time the Northwest Army also dispatched several batches of air teams to fight with Japanese aircraft, as well as some mortars and light and heavy machine guns. On a few occasions, it even bombed the positions of the Mutian Wing. Rao is like this, and the 29th Army also paid more than twice the price of the Japanese army to achieve a phased victory.

"Zhangjiakou, the eastern section of Pingsui Road is in the hands of the empire, and now the Chahar province of China has been isolated by the imperial army, and the gateway to Suiyuan and Shanxi has also been opened to the empire." Staff officer Motogo Yamai said excitedly.

"The success of the Pingsui Road operation could not hide the predicament encountered by the North China Front at this time. Maybe the Navy Ministry is waiting to see our jokes. Suzuki smiled coldly and threw the telegram he had just taken from the telegraph room on the table in front of him, "The telegram I just received, I guess you already know it, the Muta United has lost contact at this time, I believe everyone here knows what it means." ”

"What, the Mutian United has broken jade! When did the 29th Army have such an attack power? "In the spacious conference room, there was a lot of talk at this time. (To be continued.) )