Related Clues:

• European river
• 1914 Belgian battle line
• W.W. I locale
• Nord department river
• Flanders river
• River in WWI battle history
• Scene of 1914 fighting
• W.W. I battle site
• Belgian river
• River in France
• North Sea tributary
• River through Belgium
• W.W. I battle locale
• Belgium river
• Strategic WWI river