Ukrainian Insurgent Army
At the end of World War II, after the Germans withdrew, the Ukrainian Insurgent Army became active. Its units terrorised Polish population and destroyed military and police posts. Fights ended in 1947 when as the result of Operation Vistula the Ukrainian population was resettled to Western Poland. Between 1945 - 1949 Nowotaniec was the "gmina" due to the destruction of Bukowsko by the Ukrainian Insurgent Army.