The Sieradz National Defence Brigade () was a reserve unit of the Polish Army in the interbellum period. Stationed in à Âódà º, on August 30, 1939, it was moved to Wieluà Â. It consisted of several battalions, such as Wieluà  I, Wieluà  II, KÃÂpno, Ostrzeszów, Lubliniec and Klobuck. Commanded by colonel Jerzy Grobicki, it was part of the à Âódà º Army and its battalions were divided between 7th and 10th Infantry Divisions.