Zhongtiao Mountain is located in the south of Shanxi, on the north bank of the Yellow River, like a flat shoulder between Taihang Mountain and Huashan, it seems to be one end to carry the three Jin, the other to carry the three Qin, so it is named Zhongtiao Mountain. Zhongtiao Mountain is northeast and southwest, northeast high and southwest low, west from Jinnan Yongji and Shaanxi face, east to north Henan Jiyuan, Meng County and Taihang Mountain are connected, north by known as Shanxi granary reputation of Yuncheng Basin, south of a thousand miles of rolling Yellow River, 170 kilometers wide, 50 kilometers deep, the highest peak is 2321 meters above sea level of Yuanqu Li Mountain Shunwangping, the average altitude of the mountain range is 1249 meters.

From a military strategic point of view, Zhongtiao Mountain and the three mountains of Taihang, Luliang and Taiyue are each other's horns, shielding the Yellow River, Luoyang and Tongguan, and the importance of the strategic position is self-evident. The Japanese army in Shanxi had launched 13 attacks on Zhongtiao Mountain, and also attacked the Yellow River in Pinglu County, but under the resolute resistance of the defenders of Zhongtiao Mountain, they all had to withdraw their troops in the end.

After the autumn of 1940, the battlefield of Zhongtiao Mountain suddenly quieted down, the Japanese puppet army in Shanxi no longer attacked Zhongtiao Mountain, and the Japanese planes did not go to reconnoiter and bomb. Chiang Kai-shek seized this gap and transferred Sun Weiru, who was suspected of colluding with the Communist Party, to the Fourth Group Army, and by the way, also transferred the artillery regiment under the command of Wei Lihuang's 14th Group Army.

The Japanese army stopped fighting, the most ferocious troops fighting with the Japanese army were transferred, and the commander went to Luoyang again, and the national army troops stationed in Zhongtiao Mountain held their positions for several years in a row, and they were also a little tired of fighting, and they couldn't relax their vigilance if they wanted to. The defenders who relaxed their vigilance appeared in a situation that had never been seen on the battlefield since ancient times, and those who were messing around, reselling military funds, and busy trafficking tobacco and soil to make black money.

On the evening of May 7, 1942, the Battle of Mt. Nakajo, which was a full year later than history, finally kicked off due to the birth of a thunderbolt, and the Japanese army attacked Mt. Nakajo from the east, west, and north in a pincer shape with a central breakthrough. The Japanese army, who knew the defenders of Mt. Nakajo well, stormed the junction of the defenders' units as soon as they came up. In the sky, Japanese planes were bombing indiscriminately, and on the ground were Japanese artillery roaring. The night of May 7 was a dark night, a night of chaos, and a night of shame for the national army troops in Nakajo Mountain.

The Japanese troops who came over from the siege came prepared, and the various units coordinated with each other, detoured, interspersed, and encircled, and fought in one go, which was as classic as the selected courseware in a textbook. On the battlefield, most of the headquarters of the group armies, corps, and divisions were wiped out by the hidden troops that the Japanese army had been airdropped early, and the soldiers could not find officers, officers, generals, or generals, and the commanders could not find commanders, and the entire defense line of the Nationalist army in Zhongtiao Mountain had become a mess.

It stands to reason that the Nationalist troops in Zhongtiao Mountain occupy the advantage of geographical advantage, and there is the cover of night, and the Japanese planes have already flown back to lie down after completing a wave of bombing in the evening, and this condition is very suitable for the Nationalist troops to fight at night and counterattack, but now the situation is reversed, and the night has become a paradise for the Japanese army. Under the guidance of spies and traitors, and under the strategy of the small Japanese troops who had infiltrated in advance, the Japanese troops attacking Zhongtiao Mountain marched forward with great triumph, tearing bloody holes in the junction of the defending troops, and bravely interspersed and pursued. The defenders, who were unprepared in advance, struck so suddenly, and the Japanese artillery shells and bombs knocked out the firepower points of the front-line troops as soon as they came up, and the heavy machine gun positions and mortar positions on which the defenders relied on the enemy were all destroyed by the Japanese at the first time.

At dawn, the Fifth Army of the Nationalist Army on the Western Front collapsed; The Ninth Army on the Eastern Front also abandoned Jiyuan and Mengzhou and retreated westward; The northern line connecting the Fifth Army and the Fourteenth Army was Gao Guizi's 17th Army and Zhao Shiling's 43rd Army, of which as soon as the 43rd Army's 18 Ping position was broken, the army commander Zhao Shiling ordered to withdraw to the Wanxianzhuang line, completely ignoring the safety of the 17th Army on the left flank and the 14th Army on the right flank, resulting in the 17th Army having to retreat although it had put up relatively effective resistance. In this way, the Japanese army easily severed the connection between the Fifth Army and the Fourteenth Army, the main force of the defenders of Zhongtiao Mountain, and created conditions for the Japanese army to divide and annihilate the two group armies.

By the time Chiang Kai-shek knew that the Battle of Zhongtiao Mountain had broken out, it was already the morning of May 8. Because of the smooth implementation and expansion of the Spark Plan, Chiang Kai-shek, He Yingqin, Bai Chongxi, and Xu Yongchang, the Minister of Military Command, misjudged that the Tinder active in Hebei and Shandong had successfully disrupted the deployment of the Japanese army in Shandong and Hebei while blocking the Japanese army's continued transportation of ammunition supplies to Shanxi. It is impossible for the Japanese army to launch a large-scale attack in two directions at the same time, not to mention anything else, it is difficult for the Japanese army to meet the needs of two large-scale battles in terms of logistics support alone.

Chiang Kai-shek couldn't figure it out, the high mountains and dangerous roads in Zhongtiao Mountain were not conducive to the movement of the Japanese mechanized troops, and it was conducive to the defenders holding on to the danger. How did it happen that many troops lost contact and all the defensive lines were broken through overnight? At noon, the Japanese army dispatched a large number of transport planes to drop paratroopers to Yuanqucheng, the fulcrum of the defense of the central line, and cooperated with the ground troops to attack Yuanqucheng. By the evening of the 8th, it took only 24 hours for the Japanese army to complete the operational plan of breaking through the middle of the defenders of Zhongtiao Mountain and encircling them on both flanks, forming a peripheral encirclement of the defenders of Zhongtiao Mountain.

The situation was critical, Chongqing had lost contact with the Nationalist troops at Zhongtiao Mountain, and with no one available, Chiang Kai-shek could only pin his hopes on Zhao Zhi and Lei Ting. Shanxi cannot be lost, once Shanxi is fully occupied by the Japanese army, it will be extremely unfavorable to the current situation and the major counteroffensive plan formulated by Zhao Zhi, so Chiang Kai-shek can only pin his hopes on Thunder. Fortunately, Zhao Zhi had already mentioned that he had sent Yu Dazhi out of Yangquan and Willis out of Laiyuan, plus his own battle of Ding'an, I believe that the Japanese army besieging Zhongtiao Mountain will definitely postpone the attack, otherwise they will lose Taiyuan and the entire northwest of Shanxi.

Zhao Zhi reported to Chiang Kai-shek was a strategy to encircle Wei and save Zhao, bypassing Xiangtangpu to ambush the Japanese army's transport team transporting ammunition supplies to the Zhongtiao Mountain battlefield, after attracting the attention of the Japanese puppet army in eastern Jin, Zhao Zhi would go to the next city to defeat the Japanese puppet army troops who came to help, further expand the influence of Thunder in the eastern Jindong region, and force the Japanese army in Zhongtiao Mountain to send troops back to aid eastern Jindong, so as to win a chance and time for the national army troops in Zhongtiao Mountain besieged by the Japanese puppet army. With the cooperation of Qinglongping Airport in Zhangwu County, it is obviously not difficult to supply the airdropped ammunition to the besieged national army in Zhongtiao Mountain, and it is for this reason that Zhao Zhi will choose to continue to advance westward, and he wants to attract more Japanese troops who have returned from the Zhongtiao Mountain battlefield.

Under the strict orders of Chiang Kai-shek and the Ministry of Military Affairs, the troops of the Zhongtiao Mountain National Army, which had obtained the airdrop of materials, regrouped and stabilized the front and formed a confrontation situation with the invading Japanese puppet army. The initial defeat of Zhongtiao Mountain was mainly due to the lack of guns and ammunition of the defending troops and the failure of intelligence, and now with the cooperation of the Thunder Fighter Troops, the National Army of Zhongtiao Mountain began to actively respond to the battle after a short rest, and gradually organized a counteroffensive.

With Zhao Zhi's first shot fired by them in Xiangtangpu in Jindong, the development of events went as Zhao Zhi planned, successfully ambushing the Japanese ammunition convoy in Xiangtangpu, Zhao Zhi defeated the reinforcements from the puppet army in Xiangtangpu and intercepted a large number of weapons and ammunition. While cutting off the Japanese puppet army in Zhongtiao Mountain to obtain ammunition supplies, Zhao Zhi successfully attracted the attention of the Japanese army in Shanxi, and after capturing Ding'an and defeating the enemy in Wuxiang, Zhao Zhi finally got his wish to hook back the Wugang United from the Zhongtiao Mountain battlefield and annihilate the opponent.

As long as the first Japanese army that returned to aid Jindong was annihilated, there would be a second and third army, so Zhao Zhi needed a larger space and area to move around, which was why he insisted on moving to Pingyao, taking the *** control area of Luliang and Suide together, this is Zhao Zhi's real purpose, only in this way can Zhao Zhi open up the passage to Suiyuan and Mongolia as soon as possible to complete the purpose of bypassing the Soviet Union, otherwise Zhao Zhi would not deliberately befriend the Eighth Route Army.

Facts proved that Zhao Zhi's plan to encircle Wei and save Zhao was feasible, and the Japanese army besieging Zhongtiao Mountain really sent troops back to aid Jindong, and after Zhao Zhiquan annihilated the Wugang Wing, the Japanese 21st Division, which served as a reserve in the Battle of Zhongtiao Mountain, was transferred back to aid Jindong. After receiving the airdropped ammunition supply, the strategy of the national army against the enemy also changed from seizing the lost territory to killing and injuring the opponent in large numbers to weaken the opponent's strength, and the Japanese puppet army and the national army on the entire Zhongtiao Mountain battlefield appeared in a temporary stalemate. With the sudden force of the thunder in Jindong, the entire Battle of Zhongtiao Mountain began to tilt the balance of victory on the side of the national army, and the great rout of the national army in Zhongtiao Mountain, which had appeared in history, has not yet shown signs.

The solution of the crisis in Zhongtiao Mountain has become a foregone conclusion, and the tens of thousands of days of the puppet army in Zhongtiao Mountain consumed a large amount of materials every day, after the thunder cut off the transportation lines between Hebei and Shandong into Shanxi, the Japanese troops who besieged Zhongtiao Mountain are now eating their old roots, and once their reserves of ammunition cannot keep up with the consumption, the Japanese troops who once confidently besieged Zhongtiao Mountain can only face one way -- to withdraw their troops from the Zhongtiao Mountain battlefield.