Fortification

Fortifications are military constructions designed for defensive warfare. They have been used for many thousands of years, in a variety of increasingly complex designs. The practice of improving an area's defense is also known as "fortification". Many military installations are known as forts, although they are not always "fortified".

List of fortifications

• Antonine Wall
• Atlantic Wall
• Baggush Box
• Great Wall of China
• Gustav Line
• Hadrian's Wall
• Maginot Line
• Per Albin Line
• Siegfried Line
• London Wall
• The Tower of London

• bunker
• castle
• turret
• city wall
• List of forts
• Medieval fortification
• pillbox
• siege warfare
• stockade
• Vauban