The Army of Central Lithuania was the armed forces of the state of Central Lithuania proclaimed by General Lucjan Żeligowski on October 12, 1920.
With the announcement by General Żeligowski of the establishment of Central Lithuania, the army which he commanded and which participated in the Żeligowski's Mutiny automatically became the Army of Central Lithuania. It was reincorporated into Polish Army in 1922 following Poland's annexation of Central Lithuania.
The original composition of the troops
=== 1st Lithuanian–Belarusian Division === 1st Infantry Brigade Vilnius Rifles Regiment – later 85th Vilnius Rifles Regiment Minsk Rifles Regiment – later 86th Infantry Regiment 2nd Infantry Brigade Navahrudak Rifles Regiment – later 80th Infantry Regiment Hrodna Rifles Regiment – later 81st Hrodna Rifles Regiment 1st Lithuanian-Belarusian Field Artillery Regiment Mounted Riflemen Squadron 1st Sapper Company mjr. Kościałkowski's "Bieniakonie" (Benekainys) Group Kresy Battalion 216th Field Artillery Squadron Cavalry Squadron
== Military operations == After the occupation of Vilnius, the Supreme Commander of the Army of Central Lithuania, General Żeligowski, ordered the troops to advance to the line: Trakai-Kraso (in Polish) (?)-Rykantai and Bendoriai-Riešė-Paraudondvariai. Until 29 November 1920, when the Kaunas Armistice was concluded, Central Lithuania was in the state of an undeclared war with the Republic of Lithuania.
== 1st Central Lithuanian Army Corps == During the fighting, the Army of Central Lithuania was reorganized and on 16 October 1920, the 1st Central Lithuanian Army Corps was created. The corps commander was General Jan Rządkowski, the commander of the 1st Lithuanian-Belarusian Division.
Command Commanding officer– gen. Jan Rządkowski Staff Chief of Staff – p.o. mjr SG Władysław Powierza Quartermaster– p.o. mjr SG Władysław Powierza Chief of the 4th Branch (Oddziału IV) – p.o. mjr SG Władysław Powierza
=== 1st Division (Vilnius Infantry Brigade) === Vilnius Rifles Regiment Minsk Rifles Regiment
=== 2nd Division (2nd Hrodna Infantry Brigade) === Navahrudak Rifles Regiment Hrodna Rifles Regiment
=== 3rd Division === Lida Rifles Regiment Kaunas Rifles Regiment
=== 3rd Upper Neman Infantry Brigade === 5th Volunteer Rifles Regiment 6th Scouts Rifles Regiment (after the dissolution of the 3rd Brigade and 5th Volunteers Rifles Regiment, the 6th Scouts Rifles Regiment was independent) 77th Infantry Regiment (two companies)
=== 1st Artillery Brigade === 1st Light Artillery Regiment two squadrons of the 216th Light Artillery Regiment
Cavalry Division of the Army of Central Lithuania
Reserve Brigade of the Army of Central Lithuania
=== Others === Sapper Battalion Armoured Car Platoon Services
== Benekainys Operational Group (Oct. 1921) == Location on 27 October 1921: