Okay, so you know how there are different groups of people in different countries, right? Well, there are some people in Poland who come from a country called Belarus and they make up what we call a "minority" group.
Now, being a "minority" means that there aren't as many of them as there are other types of people in Poland. It's like being in a class where there are only a few kids who like a certain type of candy, while most of the other kids like different kinds of candy.
Because they are a minority, sometimes the people from Belarus might feel a bit different or left out compared to the other people in Poland. But it's important that everyone in Poland treats each other kindly and respectfully, no matter where they come from or what they look like.
And that's basically what the Belarusian minority in Poland is all about!