Sentry box

A sentry box is a little room or structure that is used by someone, usually a soldier or guard, to stand and watch over an area. It's like a mini house with windows on all sides so they can see everything around them. The person inside the sentry box has a very important job to make sure nothing bad happens and to keep everyone safe. They might also have things like weapons or radios to call for help if needed. It's a bit like a treehouse, but instead of playing games, the person inside is doing an important job of watching out for danger.