Solutions Gap made in a fortification has 10 entries with similar clues
- trenchDitch dug as fortification
- parapetFortification consisting of a low wall
- redoubtFortification
- palisadeFortification in the form of a fence with wooden stakes
- defiladeFortification against enemy fire
- stockadeFortification in the form of a fence with wooden stakes
- earthworkToil below land fortification
- breastworkFortification built hastily to about chest height
- blockhousesfortifications that obstruct homes
- hadrians-wallRoman fortification across Britain