Yup, there's just a single national flag on earth without any of these common colors. Can you guess what it is?

But some countries take a different approach. Among the world’s nearly 200 nations, only one has chosen to display a modern assault rifle, the AK-47, on its flag. Another has the rifle embedded ...

In some cases, this has carried over to the present day, giving rise to the fact that in some European countries, two ...