Keywords: Waterfilled trench Passchendaele 1917.jpg Wassergefüllter Schützengraben bei Passchendaele 1917 Bildquelle http //www gwpda org/photos/greatwar htm Photos of the Great War http //www awm gov au/collection/E01091/ Unknown Australian Official Photographer Photographer PD-Australia Original upload log de wikipedia Nachcommonsverschieber CommonsHelper de wikipedia Waterfilled+trench+Passchendaele+1917 jpg 2004-10-01 09 32 Pacifier 359×565× 44243 bytes <nowiki></nowiki> Passendale Third Battle of Ypres World War I trench warfare in Belgium |