The military term 'sentry' typically refers to a person who is standing guard at an installation entry point. Examples are military police, security forces, and security police. Other terms used to describe a sentry are gate guard and entry controller.
A sentry is a name for a soldier on guard.
Called a sentry
Guard or Sentry
Sentry
A sentry is a military guard.
A sentry.
Sentinel: A sentry or guard.
Sentinel or sentry.
watch, protector, guard, sentinel
sentry
The guard and sentry report it to him.