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
Yaroslavl Kremlin (earthwork fortifications) defensive structure
Ancient City Wall of Guangzhou city wall
Maunsell Forts World War II fortification
Old Side Front Rampart defensive rampart
Germania Superior
surface form: Upper Germanic-Rhaetian Limes
Roman frontier fortification
Himmelbett zone component of the Kammhuber Line
Hanoi Ancient Citadel fortified complex
Dai La Citadel fortified city
Danube limes Roman frontier system
Tushpa fortified city
Roman Town Wall ancient defensive fortification
Elvas fortified city
Jingzhou Ancient City Wall city wall
Gallo-Roman walls
surface form: Gallo-Roman walls of Le Mans
city wall
Belfort citadel complex fortified complex
Richmond defenses Civil War fortifications
Gothic Line German defensive line
Toruń city walls city wall
Kasbah of Tangier fortified complex
Vallum Antonini Roman frontier fortification
Acropolis of Athens ancient citadel
Iron Curtain military barrier
Finnish defensive line in Ladoga Karelia military defensive line
Murallas de León city wall
Skala de la Ville city wall
Fasil Ghebbi (in Gondar city)
surface form: Fasil Ghebbi
fortified complex
Derbent fortified city
Siegfried Line fortification line
Walled City fortified city
Roman walls of Astorga city wall
Israeli West Bank barrier border barrier
San Juan city walls city wall
London Wall defensive wall
Battle of Węgierska Górka fortifications World War II fortification
World War I military fortifications defensive military structure
Bodden Town Guardhouse defensive structure
fortifications of Lille
surface form: Fortifications of Lille
city walls
fortifications of Saint-Martin-de-Ré fortified complex
fortifications of Saint-Vaast-la-Hougue fortified complex
fortifications of Perpignan city walls
Cadmea ancient citadel
Qalʿat Hammad fortified city
Kent coast defensive line coastal defensive line
Toledo city walls city wall
Royal Military Canal defensive canal
Eastern Wall of the Old City of Jerusalem city wall
walls of the Old City of Jerusalem city wall
Zaria City Walls defensive wall
city walls of Groningen city wall
Wall of the Farmers-General toll gates city wall