Nuclear briefcase

Okay kiddo, so a nuclear briefcase is a super important thing that the leader of a country carries with them to keep their country safe. It's like a special suitcase that has really important papers and information in it.

But the most important thing in the case is a little button that can launch nuclear weapons. These weapons are really powerful and can do a lot of damage, which is why only the leader of the country has the button.

The leader only uses the button if there is a really big emergency, like if another country is attacking or they need to protect their own people.

But don't worry, they are very careful with the nuclear briefcase and only use it when they absolutely have to. It's kind of like a superhero's special tool, but for keeping everyone safe.