| Answer | Crossword Clue |
|---|---|
| YSER | River flooded in W.W. I to thwart the Germans |
| YSER | River deliberately flooded in W.W. I |
| YSER | River intentionally flooded in W.W. I |
| YSER | Belgian river deliberately flooded during W.W. I |
| YSER | River in W.W. I fighting |
| SOMME | French river in W.W. I news |
| MARNE | French river in W.W. I fighting |
| SOMME | French river in fierce W.W. I fighting |
