What does a medivele sentry do?

A medieval sentry is a guard responsible for watching over a specific area, such as a castle or a fortification, to detect and report any signs of danger or intrusion. They often stand at key points, such as gates or towers, and are tasked with maintaining security by alerting others to potential threats. Sentries may also check the identity of individuals entering the area and ensure that the premises remain safe during their watch. Their vigilance is crucial for the protection of the community they serve.