On the morning of July 19, 1920, the Red Army again occupied Novogrudok. After crushing defeats in the Battles of Warsaw and later of the Niemen River, on October 1, 1920, Polish troops again occupied the city. These were detachments of the 1st and 5th Legions' Infantry Regiments, the 16th Infantry Regiment, and 3 batteries of the 1st Legionary Artillery Regiment. Most of them belonged to the 1st Legions Infantry Division.