Dramatic and filled with horror, the clash at Passchendaele Ridge was one of World War One's bloodiest. After years of stalemate, the British and French armies launched a massive offensive, only to find themselves literally bogged down in low ground that had turned into a quagmire. By battle's end, over 300,000 Allied and 260,000 German soldiers had perished. Includes a wealth of previously unpublished testimonies from the Imperial War museum.