ELI5: Explain Like I'm 5

Hungarian rail border crossings

Imagine you and your family want to go on a trip to another country. Now, just like you can't leave your house without unlocking your front door, countries need to check who comes in and out of their borders. Hungary is one such country, and it has different ways of checking people and things that cross their border by rail.

For example, let's say you and your family want to take a train from Budapest, Hungary to Vienna, Austria. The train has to cross the border between Hungary and Austria. At this border crossing, the Hungarian border guards will ask for your passport or ID card to check who you are and make sure you're allowed to enter the country. They may also ask if you have anything with you that's not allowed, like weapons or dangerous things. They'll check your bags, too, to make sure you're not carrying anything suspicious.

The same goes for cargo trains that transport goods across the border. The border guards need to check the cargo to make sure everything is legal and safe.

There are also special trains called "Schengen trains" that cross the border between Hungary and other countries that are part of the European Union's Schengen Area. These trains don't stop at the border for passport checks, because the countries in the Schengen Area have agreed to allow people to move freely within their borders.

So, in summary, Hungarian rail border crossings are places where people and goods are checked when they cross the border by train. This is to make sure everything that enters Hungary is legal and safe for everyone.