| Answer | Crossword Clue |
|---|---|
| YSER | River in WWI fighting |
| YSER | River that was the scene of WWI fighting |
| MARNE | River important in WWI |
| YSER | Important river in WWI |
| YSER | French river important in WWI |
| YSER | River in WWI battle history |
| YSER | River in W.W. I fighting |
| MARNE | French river in W.W. I fighting |
| LIRI | Italian river valley in W.W. II fighting |
| SOMME | French river in fierce W.W. I fighting |
