Alright kiddo, so weltpolitik is a fancy way of saying "world politics." It's like the way people from all over the world talk and work together (or sometimes disagree) to make important decisions that affect everyone.
Just like how you and your friends might work together to decide what game to play or what snack to eat, countries also work together to make decisions about things that affect them all. These decisions might be about things like trade, war, or even the environment.
Some countries might have more power and influence than others, just like how some of your friends might be louder or more persuasive than others. But everyone still gets a say, even if they don't have as much power.
Weltpolitik is important because it helps countries work together and solve problems that are too big for just one country to handle. But, it can also be tricky because sometimes countries don't agree on what the best solution is. It's like when you and your friends can't agree on what game to play, except instead of just being upset for a little while, bigger decisions can have bigger consequences.
Overall, weltpolitik is about countries coming together and working to make the world a better place, even when it's not always easy.