| Answer | Crossword Clue |
|---|---|
| KIEL | U-boat base in Northern Germany. |
| LORIENT | Brittany seaport that housed a U-boat base in WWII |
| THULE | Northern air base of U. S. and Denmark. |
| BREST | Nazi U-boat base. |
| KIEL | Former U-boat base. |
| KIEL | Bomb-blasted Nazi U-boat base. |
| OSTEND | Belgian U-boat base, World War I. |
| LORIENT | U-boat base between Brest and St. Nazaire. |
