THE BIELEFELD VIADUCT - The attacks on this vital railway bridge by Karel Margry. United Kingdom - UK Poison Gas manufacture - Major T. I. J. Toler gives a detailed account of the production and distribution of Mustard Gas in Britain during the Second World War and its subsequent disposal. It Happened Here - Mustard Disaster at Bari - Karel Margry visits the Italian Harbour subjected to one of the most successful German attacks on Allied shipping during the war. Poland - Incident at Mosty - Jan Heitmann explores a little-known event which took place on August 25, 1939 near the Czechoslovakian/Polish border. ( )