ELI5: Explain Like I'm 5

4M (artillery)

4m artillery refers to a type of weapon that shoots big metal balls over very long distances. Think of it like a big slingshot, but instead of rocks, it shoots heavy metal balls.

The number "4" refers to the diameter of the metal balls it shoots, which is about 4 meters (13 feet)! That's as tall as some people!

People use artillery like this for wars or battles, where they want to shoot things really far away to hit the other side. It's powerful, but also kind of dangerous, so it's not something that you play with like toys.

Overall, 4m artillery is a very powerful and important weapon that people use for fighting in big battles.