This article is about a type of fortification. For other meanings of this word, please see: Citadel (disambiguation).
Citadel's view from the top of an Irish castle
A citadel is a fortress for protecting a town, sometimes with a castle in its middle. Citadels are most often used to protect a garrison or political power from the inhabitants of the town it is defending. They were designed to ensure loyalty from the town which they defended.
In a fort with bastions, the citadel is the strongest part of the fort, well inside of the outer walls and bastions.
A citadel is a fortress for protecting a town, sometimes with a castle in its middle.
the citadel, placed on a commanding eminence, was important in the life of the people, serving as a refuge and stronghold in peril and containing military and food supplies, the shrine of the god and a royal palace.
In the Middle Ages the citadel was the last defense of a besieged army, often held after the town had been conquered, and affording retreat to the country around the town.