Summary: 193 1 In peacetime, the Japanese Imperial Army had 17 divisions with about 300,000 troops. These forces were sufficient for the role played by the Japanese army at that time. However, from September of 193 1, with the deepening of Japanese operations in Manchuria, the scale of the Japanese army began to expand accordingly to cope with the new situation. 1September, 937, at the beginning of the Sino-Japanese War, the Japanese army had expanded to 24 divisions. The following year, in order to cope with the bitter battle of the huge front ahead, the Japanese army expanded to 34 divisions. At the beginning of the Pacific War, the Japanese army had 5 1 division, of which 27 divisions were stationed in China, and 13 divisions were stationed on the border between China and Mongolia in case the Soviet Red Army might launch a surprise attack. The total number of Japanese troops in attack force in the Pacific battlefield is about 400,000. Structure of Japanese high command: nbsp, nbsp. The emperor of Japan is not only the leader of Japan, but also the supreme commander of the armed forces. 1926, Emperor Hirohito ascended the throne and took the title of "Showa". (meaning "peace for all"). Encouraged by the emperor and powerful factions at that time, the Japanese army established a base camp, assisted by the Supreme Military Staff Committee and the Supreme General Assembly. Because the army rules all government agencies in Japan, most members of the base camp are bureaucrats of the military command department, and have nothing to do with institutions parallel to the base camp, such as the cabinet and the National Assembly. Nbsp; The chain of command of the Japanese army is from the general staff of the base camp to various battle groups (such as Chinese dispatch troops) under the command of marshals or senior generals. Each battle group has more than two "regional legions" with numbers. Each general or lieutenant general commands more than two corps-level army units and one aviation unit. (For example, there are 1 1, 13 and 23 armies sent by the front line in Central China.) In the western definition, a regiment-level unit should be commanded by a lieutenant general, with more than two divisions under its jurisdiction, as well as some independent auxiliary brigade-level units or other combat units. Each infantry division is commanded by a major general. Japanese Infantry Division: There are three types of organizational systems of Japanese Imperial Infantry Division: A, B and C, of which "A" is reinforced, "B" is standard and "C" is special. Nbspnbspb area. The "B" division is the standard infantry division of the Japanese army. It has three infantry wings, an engineering wing, a field artillery wing, a transport wing, a reconnaissance brigade and some small branches of auxiliary forces (for example, communication forces, medical forces, rank maintenance forces, veterinary forces, water purification forces and chemical defense forces, etc.). ). These "B" types can be described as varied. Some divisions have cavalry units, but no semi-mobile reconnaissance units. Some divisions have light tank squadrons, either as a supplement to the division's combat effectiveness or instead of reconnaissance or cavalry units within the division. Other divisions have mountain artillery wings, but no field artillery wings. In short, the composition of Japanese divisions is not static, but will be adjusted according to different periods and different defenses. Nbspnbsp nbsp Different numbers of divisions also have their own regional guard tasks, and their different numbers of United units are recruited from various designated areas. For example, the 2nd (Mito) Infantry Wing, 15 (front axle) Infantry Wing and the 59th (Utsunomiya) Infantry Wing belong to the 4th Army of Guangdong Dispatching Army 14 (Utsunomiya) Division. The auxiliary units of the division are also recruited from the areas under the jurisdiction of the division, and the numbers of these auxiliary units are usually (not absolutely) the numbers of their divisions. For example, 14 division 14 reconnaissance brigade, 20th field artillery brigade, 14 engineering wing, 14 transport wing. There are also some situations that are different from this general rule. For example, the 17 "All Japan" division of the Japanese army nbsp； jurisdiction over 1 and the 2nd and 3rd infantry regiments. Nbspnbspnbspnbsp "a" type division. "A" division has more infantry. There is an artillery unit (with the same name as its division) under its jurisdiction. The artillery unit is also equipped with a medium and heavy howitzer wing and sometimes a division tank brigade. Some divisions' combat units are also equipped with simple motorized equipment. Type A division seems to include 1, 8, 10- 12, 15, 19, 20, 23-25, 28, 5 1, 57. For example, another division of the 4th Army 1 (Tokyo) has jurisdiction over 1 (Tokyo), 49 (National Government) and 57 (Chiba) Infantry Wing. The numbers of its reconnaissance unit, two artillery wings, a division tank unit, engineers and transport units are all "1". Nbsp nbsp nbsp "c" type partition. The organizational structure of Type C Division is relatively small, with two infantry brigades, namely, eight independent infantry brigades and minimal auxiliary forces, and no artillery units. Type c partition includes partitions 58-70 (excluding partitions 6 1 and 64). The main task of Type C Division is to participate in the anti-guerrilla warfare on the battlefield in China. For example, the 69th (Hirosaki) Division consists of the 69th Engineer Transport Unit and the 82nd-86th,1120th independent infantry brigades from Akita, Yamagata and Aomori. Nbspnbspnbsp The following are the formal organizational systems of three types of infantry divisions, which are not actual combat organizational systems. The actual combat organizational system will be adjusted according to the different environments of the troops. 1940 Japanese standard infantry division type b nbspCnbspBhnbsp. Lnbspfnbspnbspnbsp, there are 20,000 people and 7,500 horses.