During the times of the Second World War and the Nazi occupation (1939-1945) the occupying forces blocked any access to the Mound. In plain view from the Wawel, this symbol of Poland irritated governor Hans Frank. The Mound was to be destroyed. Fortunately that has not happened. Only the plans remained. The Nazi’s did destroy the Kościuszko monument on Wawel and the commemorative plaque on a house on the Main Square where Kościuszko lived. During that time the Committee worked in the background to take care of the Mound.