The 7th Infantry Division (, 7 DP) was the name of several units of the Polish Army. Second Polish Republic The original division was formed on 14 May 1919 near Częstochowa. At that time it consisted of two infantry brigades (13th and 14th), and four infantry regiments (25th, 26th, 11th and 27th), as well as two artillery brigades (7th Light Artillery, 7th Heavy Artillery). The division took part in shielding of the Polish borders during the Polish–Ukrainian War of 1919. During the Polish–Soviet War it was commanded by Col. Szubert and reinforced to three brigades (13th Bde under Herman, 14th Bde under Pogórzelski and 7th Artillery Bde under Luberadzki). It took part in the Battle of the Niemen as part of the Polish 3rd Army. After the war the division was dispersed in several barracks in western Poland, among them in Częstochowa, Piotrków Trybunalski, Lubliniec and Łódź. In 1921, the structure of the division was changed: both infantry brigades were dissolved, and the 11th Infantry Regiment was transferred to the 23rd Infantry Division. In the Second Polish Republic, the division was commanded by the Fourth Military District from Łódź. The headquarters of the division were stationed in Częstochowa, and it consisted of the following units: 25th Infantry Regiment (Piotrków Trybunalski), 27th Infantry Regiment (Częstochowa), 74th Upper Silesian Infantry Regiment (Lubliniec), 7th Light Artillery Regiment (Częstochowa). In mid-1939, following Plan West, the 7th Division, commanded by General Janusz Gąsiorowski, was attached to Kraków Army, which defended southwestern corner of Poland. The division, supported by Battalion Kłobuck of the National Defense, defended 40-kilometer long section of the Polish–German border, between the towns of Lubliniec and Krzepice, north of which units of Łódź Army were stationed. Due to quick advance of the panzer units of the Wehrmacht, in the night of 1/2 September 1939, the division retreated from its positions near Kłobuck and Truskolasy, and manned main defence line around Częstochowa. During the retreat, a squadron of divisional cavalry was destroyed by the enemy. After bloody fighting near Częstochowa, the division was forced to retreat further east: on 2 September, General Gasiorowski received the order of General Antoni Szylling, commandant of Kraków Army, to begin the retreat in the evening. After a night march, the 7th Division reached the area of Lelów, where on 3 September in the morning its 74th Regiment was attacked by the 2nd Light Division. Polish losses were very