| skos:altLabel | - castle
- earthworks
- fortifications
- fortress
- Defence
- defense
- fort
- works
- defences
- Fortress
- post
- base
- castles
- lines
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- Força
- Fortifications
- city fortifications
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- timbering
- Piquet
- trace
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- Earthworks
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- walled city
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- fieldwork
- field fortifications
- Defensive fort
- Defensive works
- Field fortifications
- Fortazela
- Fortification (general)
- Fortification#Forts
- Fortification#Nomenclature
- Fortress Age
- Fortín
- History of fortification
- Kothi
- Military earthworks
- Military fort
- Military fortification
- U.S. Army fort
- U.S. Military Fort
- United States Army Post
- artillery fort
- base fortified complex
- bunker defenses
- castellated architecture
- defence architecture
- defence emplacement
- defensive Lines
- defensive facility
- defensive fortifications
- defensive military
- defensive pieces
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- dig in
- earthwork battlement mounds
- earthworks fortification
- emplaced
- emplacements
- encastellated
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- entrenchment
- entrenchments
- field fortification
- field works
- fixed fortification warfare
- fort or fort system
- fort.
- fortalice
- fortificated
- fortification structure
- fortification structures
- fortification#History
- fortification-building
- fortified castle
- fortified complex
- fortified military position
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