A roundel is a special type of fortification that was used in ancient times to protect people from enemies who might try to attack them. It is a circular structure that is made up of walls, with a flat area in the center that people can use for different purposes such as storing goods or setting up a watch. The walls are thick and made of strong material like stone, which offers a lot of protection against any incoming attacks.
The roundel is usually located on a high point like a hill or a mountain to make it even harder for enemies to get in. The circular shape of the roundel helps to defend it better because it provides a 360-degree view of the surrounding area, which means that people can see any enemies approaching from any direction. This strategic advantage makes it very difficult for attackers to surprise the people inside the roundel, which means that the defenders have a better chance of winning the battle.
In the past, roundels were used as a place of refuge for people when they needed to protect themselves from invasions or disasters. The flat area in the center of the roundel was used for various purposes like storage or as a gathering place for people to discuss important matters. It was also a place where soldiers could train and prepare for battle.
In summary, a roundel is a circular structure with walls made of thick and strong materials designed to protect people from enemy attacks. It provides a 360-degree view of the surrounding area and offers a strategic advantage in defending against attackers. It was used in the past as a place of refuge, storage, and gathering place.