When people talk about the Arctic, they are talking about a really, really cold place at the top of the earth where it's snowy and icy all year long! Lots of countries have land that is close to the Arctic, like Canada, Denmark, Norway, Russia, and the United States.
Now, imagine a big pie. This pie is not a regular pie, but a big pie of land that's really, really cold and covered in snow and ice. The Arctic pie is divided among different countries, but some parts of it still don't belong to anyone! That's right, some pieces of the Arctic pie are unclaimed, and countries are trying to claim them.
People want to claim these unclaimed parts of the pie so they can have more control over that area. Each country wants to own the parts that are close to their borders, so they can use the resources like oil, gas, and fish that are in the area. However, not every country agrees on who gets what slice of the pie. Different countries have different ideas about who deserves what, and it is creating tension between them.
Sometimes countries work together to try and figure out who should get to own which slice of the Arctic pie. They talk and negotiate (which means they sit down and try to work out a deal), but sometimes this doesn't work out, and it becomes a big problem.
In summary, lots of countries want to own parts of the Arctic pie, but agree on who should own each slice can be tough. Some parts of the pie are still up for grabs, and everyone wants to get as big a slice as they can.