A '''citadel''' is a large [[fortress]] or [[castle]] that is usually built to protect [[City|cities]] or [[Town|towns]] from attacks or disaster, though citadels have been built for other reasons as well. Citadels are often built to be the final protection for a city or town, in case enemies break through other protections such as [[Wall|walls]] or [[Soldier|soldiers]]. | A '''citadel''' is a large [[fortress]] or [[castle]] that is usually built to protect [[City|cities]] or [[Town|towns]] from attacks or disaster, though citadels have been built for other reasons as well. Citadels are often built to be the final protection for a city or town, in case enemies break through other protections such as [[Wall|walls]] or [[Soldier|soldiers]]. |