The city of Düren was located on the main fighting front during the Allied invasion of Germany in World War II. During 1944 and 1945, the protracted and bloody Battle for Hürtgenwald was fought on Düren's district area, and on November 16, 1944, Düren was completely destroyed by Allied air bombings. Approximately 22,000 people lived in Düren at that time, and 3,000 of them died during the bombing. Those who survived were evacuated to central Germany. Destroyed buildings included the Stadttheater Düren (1907), designed in Jugendstil by Carl Moritz.