Okay kiddo, so you know when you and your friends play a game and you have to decide who gets to be what? That's a little bit like what happened with Western Sahara, which is a big area in Africa.
A long time ago, a lot of different countries wanted to control Western Sahara because it has a lot of important things like oil, fish and minerals. But the main people who lived there were called the Sahrawi people and they wanted to decide for themselves what happened in their land.
So, the United Nations (which is like a big group of countries that work together) came up with a plan to let the Sahrawi people have a vote to decide if Western Sahara should be its own country, join Morocco (which is a country right next to it) or become part of Mauritania (which is another country nearby).
But the vote never happened because Morocco said that Western Sahara was a part of their country already. The Sahrawi people, however, don't agree with this. So, now there is a big disagreement about who actually has the legal right to control Western Sahara.
Some countries, like the United States, don't recognize Western Sahara as its own country and instead recognize it as a disputed territory, which means they don't pick sides and just hope that everyone can figure out a good solution eventually.
So, there are a lot of debates and discussions happening right now about what should happen with Western Sahara and who has the right to control it, but it's still a bit of a mystery for everyone at this point!