Related Clues:
- Elevated fortification
- Defense structure
- Military base
- Defense in a snow fight
- With 43-Down, storied Bronx station house
- Baltimore's McHenry
- Besieged building
- Tube rod used in small fortification
- Obtrude in kind of military fieldwork
- Military protection
- Obtrude like outer fortification
- Temporary or outward fortification
- Strong fence, for defence
- Embankment built for defensive purposes
- Bulwark, wall