The last prominent social event before the First World War was the inauguration of the '' Rosengarten '' ( rose garden ) by Princess Hildegard of Bavaria in June 1914 . As a consequence of the First World War , Zweibrücken was occupied by French troops between 1918 and 1930 . In the course of the '' Kristallnacht '' in 1938 , Zweibrücken 's synagogue was destroyed . On the outbreak of the Second World War the town was evacuated in 1939-1940 , as it lay in the ‘ Red Zone ’ on the fortified Siegfried Line . Shortly before the end of the war , on 14 March 1945 , the town was nearly completely destroyed in an air raid by the Royal Canadian Air Force , with the loss of more than 200 lives . On 20 March , American ground troops reached Zweibrücken . The town became part of the new state of Rhineland-Palatinate after the war
Kristallnacht
Kristallnacht
Zweibrücken