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Although the top Japanese military leaders agreed on the decision to resolve the war in China first, there were huge differences in how to fight the war in China. In particular, the Chinese dispatched troops and the North China Front Army had different ideas and intentions on the issue of attacking China's rear area. no the same.
Mainly from the perspective of "public security", the North China Front Army believed that the Japanese Army in North China had been fighting against the Eighth Route Army for many years, but had never been able to eliminate it; in addition, the Kuomintang Army in the southern Shanxi area had concentrated its forces many times to "separate and attack together". In the end they were unable to annihilate them.
The main reason is that there is support from the rear to the west and south of the Yellow River.
Therefore, when the North China Front Army formulated its operational plan for 1942, it proposed the idea of ??deploying a certain amount of additional troops when the Nanyang Operation came to an end. From June to September, it would first capture Xi'an in the 8th Theater and then capture Yan'an, the general rear area of ??the Eighth Route Army.
This idea has been concretized and included in the "Supreme Construction Plan for the Seventeenth Year of Showa", in which the operational plan for attacking Xi'an was codenamed "Operation Plan No. 5".
"The China Dispatch Force believes that since the outbreak of the Pacific War, although China's hoped-for direct war between Britain and the United States against Japan has been realized, a formal alliance has been formed; the United States' aid plan to China is also being implemented.
However, China is currently in its most difficult period. The Soviet Union is no longer able to aid China due to its war with Germany. Although the United States has plans to aid China, the Japanese army has reached Southeast Asia and has transportation lines to China via roads and railways in Vietnam and Burma. has been blocked, and the number of air shipments from India to China is extremely limited.
Therefore, this opportunity should be used to launch attacks on Xi'an in the 8th Theater, Enshi in Hubei Province in the 6th Theater, and Changsha in the 9th Theater to force China to gradually give up its plans for British and American assistance and consider peace talks with Japan.
The above are all attempts to use local attacks to achieve the goals of public security and peace talks.
Later, the Chinese dispatched troops and their base camp conducted further research. In particular, Sugiyama Yuan inspected the battlefields in Southeast Asia and when he returned via Shanghai, he conducted research with Marshal Hata Junroku who went to greet him. They came to a consistent approach and both believed that the battle in the south would be successful. After cutting off China's external dispatch via Myanmar, we should concentrate our forces and launch a strategic attack on Sichuan Province in China's rear.
After that, in order to attack China's rear area of ??Sichuan, the Japanese Army General Staff Headquarters held several discussions with the Chinese Expeditionary Force and the North China Front Army, and held a meeting between division commanders, corps commanders, and local commanders in Japan from April 15 to 17. This was further studied at the meeting of the commanders of the Defense Forces.
After the Southern Army reported to its base camp that the southern offensive operation had ended, the Japanese base camp, the Chinese Expeditionary Army, and the North China Front Army conducted several studies and finally decided to prepare to mobilize 230,000 new soldiers to join the army and start attacking China's rear in the spring of 1943. Sichuan¡¯s ¡°Operation Plan No. 5¡±.
?Subsequently, Hideki Tojo, who was also the Minister of War of Japan, and Chief of Staff Gen Sugiyama reported the relevant issues of "Operation No. 5" to Emperor Hirohito, and they were immediately approved.
The main content of the plan is to launch an attack in two directions with the main force of the Chinese dispatched troops from Xi'an and the second part from the Wuhan area, defeat the main force of the Central Army, enter Sichuan, and capture Chengdu and Chongqing.
In terms of the use of troops, the base camp decided to form the 5th Front Army in North China. The headquarters was based on the North China Front Army. General Seishiro Itagaki, who was the commander of the Korean Army at the time, was the commander of the front army. The troops participating in the battle included 5 troops from the 1st Army. A division and a brigade, three divisions of the 7th Army, two divisions and a brigade of the 28th Army, five divisions of the 11th Army, and the 3rd Flying Division.
As for the operational concept, the base camp decided to divide the entire plan into two. The first phase took place after the spring of 1943. The 5th Front Army broke through the blockade from Shanxi Province and crossed the Yellow River.
The 1st Army along the south of the Wei River and the 7th Army along the north of the Wei River launched an attack on Xi'an. After success, the two armies continued to attack Zhanbaoji in the west.
The First Division crossed the Yellow River from the northeast and east of Yan'an to the west, and with the cooperation of the First Division of the Seventh Army north of the Wei River, captured Yan'an and its nearby oil fields.
Then the 7th Army defended the Guanzhong Plain north of the Qinling Mountains. The main force of the 1st Army moved from Baoji to Fengxian and Hanzhong, cutting off the highways leading to northwest Lanzhou and Xinjiang through Huixian and Wenxian.
The other part of the army went from Lantian, Xi'an, and Yi County to the south across the Qinling Mountains and reached the upper reaches of the Han River. After joining the main force in Hanzhong, it captured the Guangyuan area in northern Sichuan Province.
The 28th Army attacked Laohekou from Kaifeng, Henan, and then westward along the Han River to the Ankang area. The branch road crosses Daba Mountain and goes out to the Daxian area in northern Sichuan Province.
The 11th Army advanced westward from Yichang, Hubei, along both sides of the Yangtze River, and occupied the Wanxian area in eastern Sichuan Province.
When the above three armies arrive?After the Guangyuan, Daxian, and Wanxian areas, in northern Sichuan, northeastern Sichuan, and eastern Sichuan, form a frontal offensive posture against Chengdu and Chongqing, they will rest and reorganize in the above-mentioned areas for about a month to prepare for future operations.
In the second stage, the main task is to capture Chengdu and Chongqing.
The three armies that entered Sichuan Province were under the unified command of the 5th Front Army. The 1st Army moved south from Guangyuan and captured Chengdu via Mianyang.
The 28th Army advanced from Daxian to the southwest, supporting the 1st Army to capture Chengdu and the 11th Army to capture Chongqing.
The main force of the 11th Army passed through Enshi, Qianjiang, Yushan Town, Pengshui, Wulong, Nanchuan, and Qijiang south of the Yangtze River, and the other force went southwest from Wanxian County north of the Yangtze River to capture Chongqing.
With the end of the battle, the Chinese dispatched troops, the main force of the 5th Front Army will ensure the water transportation of the Yangtze River in the main areas of Sichuan Province and the upper reaches of Yichang, and the other part will ensure the plain areas of Xi'an.
In order to complete the above tasks, the total combat strength of the China Expeditionary Force is roughly scheduled to be based on 30 divisions.
I have to say that this is a huge and crazy plan. If you follow this plan, at least 230,000 new troops will be mobilized to join the army.
At this time, the total strength of the Japanese Army has reached an unprecedented 2.18 million, including 530,000 at home, Taiwan, and North Korea; 700,000 in the battlefield in Northeast China; 610,000 in the Guanhai battlefield; and 340,000 in Southeast Asia.
If an additional 230,000 troops are recruited, the total strength of the Japanese army will reach an unprecedented 2.4 million.
Think about it, when the war started in the 12th year of the Showa era, the total strength of the Japanese army was only 250,000. In just a few years, its total strength increased nearly 10 times. They did not engage in military warfare like this. This shows how many Japanese people there are. crazy.
But even such a crazy plan was approved in front of the emperor!
Moreover, considering attacking Sichuan from the south and north, the troops will have to fight in plains, mountains, and complex terrain, and they will also have to cross wide rivers such as the Yellow River, Weishui River, Han River, Yangtze River, Jialing River, Fujiang River, and Qianjiang River. , the Japanese command organs and troops have made advance preparations and conducted corresponding drills.
When the North China Front Army Headquarters, which was intended to serve as the headquarters of the 5th Front Army, was studying the march route of the troops, it felt that there was insufficient topographic data available for crossing the Yellow River, crossing the Qinling Mountains, Daba Mountain, and passing through the dangerous road from Baoji to Hanzhong. Therefore, it is clearly required that all staff and leaders who formulate operational plans should go to accessible roads, river crossings, and passes to conduct on-the-spot reconnaissance, mapping, recording, marking, photography, and calculations.
As for the reconnaissance of river crossing points, bridges, roads, and passes in places such as the Wei River, Qinling Mountains, Han River, and Daba Mountain, they are carried out by reconnaissance aircraft of the Army and Air Force.
In early July, four people, including Takeharu Shimanuki, the operational staff officer of the North China Front, Yukio Yokoyama, the intelligence staff officer, Kanichi Sasai, the intelligence staff officer of the 1st Army, and Nakajifu, the combat staff officer of the Nanjing Expeditionary Force, arrived at Feng Lingdu on the other side of the Yellow River in Tongguan and headed north to Longmen, Hejin, reconnaissance was conducted along the east bank of the Yellow River.
A number of river crossing points have been determined and preparations are made for forced crossings from these points to break through the heavy defense of the Chinese river defense troops on the west bank.
After conducting ground reconnaissance to study and summarize relevant information and data, these four staff officers took a plane on July 1 to conduct a systematic visual and photographic reconnaissance of the terrain and roads on both sides of the Yellow River.
On July 13th and 14th, Lieutenant General Adachi 23rd, Chief of Staff of the North China Front of the Japanese Army, and two staff officers, Shimanuki and Nakayoshi, flew to inspect the mountains, rivers, roads, forests, cliffs, passes and other areas of the Qinling Mountains and Daba Mountains. Aerial reconnaissance was conducted at various crossing points and bridges of the Han River and the Wei River, as well as in Xi'an, Baoji, Hanzhong, Guangyuan and other vast areas.
On the 15th, Anda 23 went from the ground to the other side of the Yellow River in Bawang City, northwest of Zhengzhou, to reconnoiter the crossing point and study how to organize troops to force the crossing.
After Anda returned to Peiping, he conducted research based on the results of the reconnaissance. In order to prevent the training of forcibly crossing the Yellow River from being leaked, he decided to mobilize engineering officers, backbones and part of the troops from each division to spend a week on the Huaihe River near Bengbu. Select terrain similar to the Yellow River to conduct river crossing drills, and practice wartime loading in strong winds and waves to test the reliability of crossing the Yellow River. (Remember the website address: www.hlnovel.com