Sieradz National Defence Brigade () was a reserve unit of the

Polish Army The Land Forces () are the Army, land forces of the Polish Armed Forces. They currently contain some 110,000 active personnel and form many components of the European Union and NATO deployments around the world. Poland's recorded military histor ...

in the interbellum period. Stationed in

Łódź Łódź is a city in central Poland and a former industrial centre. It is the capital of Łódź Voivodeship, and is located south-west of Warsaw. Łódź has a population of 655,279, making it the country's List of cities and towns in Polan ...

, on August 30, 1939, it was moved to

Wieluń Wieluń () is a town in south-central Poland with 21,624 inhabitants (2021). The town is the seat of the Gmina Wieluń and Wieluń County, and is located within the Łódź Voivodeship. Wieluń is a capital of the historical Wieluń Land. W ...

. It consisted of several battalions, such as ''Wieluń I'', ''Wieluń II'', ''Kępno'', ''Ostrzeszów'', ''Lubliniec'' and ''Klobuck''. Commanded by colonel Jerzy Grobicki, it was part of the

Łódź Army Łódź Army () was one of the Polish armies of the Polish Armed Forces of the Second Polish Republic that took part in the Invasion of Poland of 1939. It was officially created on 23 March 1939 with the task of filling the gap between Poznań ...

and its battalions were divided between 7th and 10th Infantry Divisions.

See also