| Answer | Crossword Clue |
|---|---|
| RHINE | Part of the border of France and Germany |
| NEISSE | River that forms part of the border between Germany and Poland |
| ELBE | River that formed part of the border between East and West Germany |
| ODER | Part of the Poland-Germany border |
| ODER | It forms part of the Poland-Germany border |
| ATOMSMASHER | The world's largest one straddles the border of France and Switzerland |
