line of fortifications

C875
concept

A line of fortifications is a connected series of defensive structures, such as walls, trenches, and strongpoints, designed to protect a territory or position by forming a continuous or coordinated barrier against attack.

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All labels observed (67)

Label Occurrences
city wall 86
fortified complex 37
fortified city 25

Description generation (CDg)

The one-sentence description above was generated by prompting gpt-5.1 with the class name and this instruction.

Instruction
generate a one-sentence description for a given conceptual class.
# Response Format
Return only the sentence: "Description: [one-sentence description of the conceptional class]"
Input
Class: line of fortifications
Generated description
A line of fortifications is a connected series of defensive structures, such as walls, trenches, and strongpoints, designed to protect a territory or position by forming a continuous or coordinated barrier against attack.

Instances (364)

Instance Via concept surface
Dubno Castle fortified complex
Almohad walls of Rabat city wall
Tower of David ancient citadel
Simatai section section of the Great Wall of China
Singara fortified city
Smolensk fortress city wall
Finnish defensive system on the eastern front fortification line
Uglich Kremlin fortified complex
Bretten city wall remains city wall
Forchheim city fortifications city wall
Byrsa Hill ancient citadel
Fasil Ghebbi fortified complex
Fasilides Castle complex fortified complex
Hochwald Forest defensive positions German defensive line
Fort McAllister (Richmond Hill, Georgia)?
surface form: Fort McAllister (Richmond Hill, Georgia)
Confederate fortification
Nuremberg City Walls city wall
Italian frontier fort system in North Africa border fortification system
Historic Fortified City of Briançon fortified city
Winchester city defences city wall
Valletta bastions city walls
Busan Perimeter military defensive line
Jinshanling section section of the Great Wall of China
Czechoslovak border fortifications military defensive line
Mutianyu section section of the Great Wall of China
Carcassonne
surface form: Cité de Carcassonne
fortified city
Ayyubid city walls of Cairo city wall
Jiayuguan Pass Great Wall pass
New Hope Church line Confederate defensive line
Anastasius Wall defensive wall
Dara fortified city
San Miguel
surface form: San Miguel (bastion)
defensive structure
Pitigliano city walls city wall
Neisse River line World War II defensive line
Oder line defence military defensive line
Amberg city walls city wall
Fort Harrison Civil War fortification
Duck River line Confederate defensive line
fortifications of Bergen op Zoom
surface form: Fortifications of Bergen op Zoom
city walls
medieval town tower (Black Tower / Schwarzer Turm)
surface form: Black Tower (Brugg)
defensive structure
Valère Castle fortified complex
Gate of Wood defensive structure
Gate of Writhen Iron defensive structure
Gate of Gold defensive fortification
Secteur fortifié de Savoie Maginot Line sector
Alpine Line —
Lipari Castle fortified complex
Binche city walls city wall
Spine Crawler defensive structure
Kościuszko Fortress Austrian military fortification
The Rampart of Skulls battlement