The deployment of Japanese forces in Northeast China at the time of the September 18 Incident

Independent Garrison, Commander Major General Sen Lian, stationed in Gongzhuling

Independent Defense 4th Battalion, stationed at Lianshan Pass

Independent Defense Battalion No. 3, stationed at Dashiqiao

The 3rd Infantry Brigade, commanded by Major General Teru Kamiguchi, stationed in Changchun

29th Infantry Regiment, stationed in Shenyang

Lüshun Fortress Command, stationed in Lüshun

30th Infantry Regiment, stationed in Lüshun

Engineer Company No. 2, stationed in Tieling

hetushucomcom is located at the Military Headquarters in Shenyang

On July 1, the Japanese Senate decided to change the rotation system of the Japanese army stationed in Northeast China to a permanent stationing system. It issued a secret order for the 2nd Division to concentrate its troops by regiment, while the independent garrison units also concentrated their forces accordingly to be ready for combat at any time. The Japanese army's 19th and 20th Divisions stationed in Korea also made plans to gather at the Sino-Korean border, preparing to cross the Tumen River and the Yalu River from two directions to support the Kwantung Army, and dispatched advance units to carry out bridge construction and surveying as part of their military preparations.

Cavalry Regiment No. 2, stationed in Gongzhuling; Field Artillery Regiment No. 2, stationed in Haicheng

4th Infantry Regiment, stationed in Changchun

Special Police Force, stationed in Dalian

The 2nd Division Headquarters, located in Liaoyang, is commanded by Major General Domon Erlang

The 15th Infantry Brigade, commanded by Major General Rokuro Amano, stationed in Liaoyang

Artillery Battalion, stationed in Lüshun

Independent Defense Battalion No. 1, stationed in Gongzhuling

(Excerpt from "The Combat Records of the Chinese Front in the War of Resistance Against Japan")

Kwantung Army Military Police, stationed in Lüshun

In April 1931, the Japanese Army's 2nd Division was transferred from Sendai to Liaoyang in Northeast China for a change of garrison. The members of this division were predominantly from northern Japan, making them well-suited for combat in the cold regions of Northeast China

Independent Defense Battalion No. 2, stationed in Shenyang

Independent Defense Battalion No. 6, stationed in Anshan

Before the outbreak of the September 18 Incident, the regular Japanese army in Northeast China had reached over 15,000 personnel (the 2nd Division was a reduced unit, with each infantry regiment lacking one infantry battalion, and each battalion lacking one infantry company, totaling approximately 10,400 personnel; there were 6 independent garrison battalions, each with 4 infantry companies, and each company consisting of 160 personnel, totaling about 4,000 personnel; in addition, there were the Lüshun fortress troops and heavy artillery battalions, among others). Furthermore, there were auxiliary forces such as local soldiers and police, amounting to over 10,000 personnel. The total military strength was approximately 27,000 personnel. The Japanese army was centered in Shenyang and deployed along the South Manchuria Railway to facilitate the mobility of forces. The specific troop deployment was as follows:

16th Infantry Regiment, stationed in Liaoyang

Independent Defense Battalion No. 5, stationed in Tieling