The region around Tuchola became part of the newly independent Poland in 1920. Due to the degraded state of the camp only a portion of it was deemed as usable. Reconstruction and improvement work began in March 1920. Polish authorities opened the camp again in May 1920, with the first prisoners consisting of members of the Ukrainian Galician Army, who had been captured during the Polish–Ukrainian War and in the Kiev offensive. Most of the Ukrainian prisoners were released from Tuchola by the end of 1920.