Lublin Army

Lublin Army () was an improvised Polish Army created on September 4, 1939 from the Warsaw Armoured Motorized Brigade and various smaller units concentrated around the cities of Lublin, Sandomierz and upper Vistula river. It was commanded by Maj. Gen. Tadeusz Piskor. Lublin Army was not part of prewar Polish operational plans. It was improvised when it became obvious that quickly advancing Wehrmacht armored and motorized units would reach the Vistula river line.
Tasks.
Lublin Army was tasked with defending the crossings of the Vistula river from Modlin (north of Warsaw) to Sandomierz in the south. Polish planners wanted to reinforce it with elements of the Prusy Army, which after the Battle of Radom had retreated from German encirclement, and managed to cross the Vistula. These elements, however, were of little military value, and were ordered to concentrate near Chelm. Instead, Lublin Army received 39th Reserve Infantry Division and improvised "Sandomierz" Group.
Operational history.
Lublin Army came into contact with the enemy on September 8, near Gora Kalwaria and Deblin. After the first clash, the Germans concentrated their efforts on eliminating the remnants of Prusy Army. On September 12, the Wehrmacht advanced in the area of Annopol and Solec nad Wisla. Under its pressure, Polish forces retreated towards Krasnik, where they merged with Krakow Army, and together fought in the Battle of Tomaszow Lubelski (September 17–20).
Organization.
The Army was commanded by general Tadeusz Piskor; his chief of staff was colonel Jan Zawisza.
Units: