Modlin Army


Modlin Army was one of the Polish armies that took part in the Invasion of Poland in 1939. After heavy casualties in the battle of Mława, the Army was forced to abandon its positions near Warsaw around September 10; eventually it took part in the battle of Tomaszów Mazowiecki and surrendered afterwards.

Tasks

Named after Fort Modlin, it was officially created on March 23, 1939 with the task of defending the Polish capital of Warsaw and the city of Płock from the north. It took positions near the fortified lines along the border with East Prussia near Mława, and was supposed to retreat in an organized fashion towards the second line of defense towards the Narew and Vistula rivers.

Operational history

When the Germans invaded on September 3, not all of the planned fortifications had been completed; some of the Army's units had arrived in their designated areas only by 30 August.
During the Battle of the Border the Army was pushed back by the German Third Army, towards the Narew and Bug rivers. It received reinforcements in the form of the Operational Group Wyszków under General Wincenty Kowalski, but they were not sufficient to stop it from having to fall back. Eventually, around September 10, the Army abandoned its positions near Warsaw; some of the units remained in the Warsaw area, joining the Warszawa Army taking part in the final defense of Warsaw; others were pushed to the south east and took part in the Battle of Tomaszów Lubelski, after which most of them were forced to surrender.

Organization

The army was commanded by brig. gen. Emil Krukowicz-Przedrzymirski; his chief of staff was col. Stanisław Grodzki. It consisted of 2 infantry divisions and 2 cavalry brigades. On a lower level of organization it had 28 infantry battalions, 37 cavalry squadrons, 180 artillery pieces, 12 anti-air artillery pieces, 1 armored train and 28 planes.