New Nuclear Arms Race Pits US Against Russia and China

Imagine the world is playing a game with super powerful 'toys' that can destroy big cities.

For a long time, only a few countries had these toys, and they mostly talked about not using them.

But now, two countries, Russia and China, are getting many more of these toys, and one of them, China, is making them very quickly.

Another country, North Korea, also has some and is getting better at using them.

This makes the United States feel like it needs to get more toys too, or at least get its current ones much better.

It's like a new competition is starting, but instead of just one big challenger like before, the US has two major ones, and they aren't playing by the old rules.

This worries people because more powerful toys around means a higher chance of them being used, especially if there's a fight, like over Taiwan or in Europe.