Well kiddo, the Patriot War was like a big pretend fight between some people in Florida and the British. You know how you and your friends sometimes play pretend games like cowboys and robbers or superheroes? Well, that's sort of what happened in Florida back in the 1800s, but with grown-ups.
Some of the people who lived in Florida wanted to be their own country and not part of the United States anymore. They called themselves "patriots" and wanted to fight for their independence. But the British wanted to help the patriots because they didn't like the United States very much. So they sent some soldiers and supplies to Florida to help out.
The United States government didn't like this and they sent their own soldiers to stop the fighting. It was kind of like a big game of tag, where each team was trying to catch the other team and make them go back home.
Eventually, the United States won and the patriots weren't allowed to be their own country. But it was still a really important moment in history because it helped show that the United States was a strong, powerful country that wasn't going to let anyone mess with it.