The Nazis hindered Kurt Fiedler because he was known as an active social democrat. During World War II Kurt Fiedler served as translator for French prisoners of war. He left army in 1942 because of poor health. Until the end of Nazi Germany he earned his money with technical drawings at the Dresden University of Technology. The home of Kurt Fiedler was completely destroyed during Bombing of Dresden in World War II on 13 February 1945. After the war, Kurt Fiedler belonged to the directorate of the association of fine arts in Dresden. He was artistic fellow worker of the Saxon regional board of the Socialist Unity Party of Germany. As nearly all social democrats Fiedler became sidelined in following years.