| Answer | Crossword Clue |
|---|---|
| SUBS | U-boats. |
| SUBS | U-boats |
| SNORKEL | U-boat's aid |
| TINCAN | U-boat's attacker |
| MEER | U-boat's sea |
| PENS | Slips for U-boats. |
| DESTROYER | Nemesis of U-boats. |
| SUBS | U-boats for short |
| SEALANES | Where U-boats prowl. |
| DEPTH | Charges that followed U-boats? |
| ANTISUB | Used against U-boats e.g., |
| GASPE | Canadian peninsula where U-boats are active. |
