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
Bar Lev Line fortification line
Nicosia city walls city walls
Fengshan Old City walls city wall
City walls of Segovia city wall
Tobolsk Kremlin fortified complex
Carthaginian wall of Cartagena ancient defensive wall
Orugallu fortified city
Confederate Kennesaw Mountain line military defensive line
Summa, Karelian Isthmus fortified area
Chester city walls city wall
Fortifications of Ancona city walls
Fort Davis area Civil War fortification
Tavistock town walls (remains) defensive wall
Medieval city walls of Stargard city wall
Bastion Świętego Ducha (Holy Ghost Bastion)
surface form: Bastion Świętego Ducha
defensive fortification
Japanese defensive perimeter in the Central Pacific military defensive line
Wotan Line World War I defensive line
Alberich Line World War I defensive line
Brama Wałowa (Rampart Gate)
surface form: Brama Wałowa
defensive structure
Brunhild Line World War I defensive line
St. Olaf’s Tower defensive structure
Vyborg town wall system city wall
Senger Line German defensive line
Paula Line German defensive line
Caesar C Line World War II defensive line
Linea Gotica German defensive line
Görlitz city walls city wall
Trasimene Line German defensive line
Chiang Mai city wall system defensive fortification
Medicean walls of Grosseto city walls
Green Line
surface form: Green Line (Italy)
German defensive line
Fort Stevens Civil War fortification
Fort Mahan Civil War fortification
Fort Ethan Allen (site) Civil War fortification
Fort Meigs (site) Civil War fortification
Fort Ricketts (site) Civil War fortification
Fort Mahon (site) Civil War fortification
Fort Greble Civil War fortification
Canterbury city walls city wall
Erbil
surface form: Erbil Citadel
ancient citadel
Fort DeRussy Civil War fortification
Mahakot gate defensive structure
Great Chain across the Hudson River military barrier
Famagusta city walls city wall
Citadel of Bastia fortified complex
City wall of Soest city wall
Qi Great Wall ruins ancient defensive wall ruins
fortifications of Harar Jugol city wall
Battery Kemble Civil War fortification
American Civil War forts class of military fortifications