There's only country in the world whose flag has no red, white, or blue in it

[I spent the winter writing songs about getting better]

Which one is it?

I was surprised to learn this....but it's true. It was two before the Libyan revolution of course, but now just one.

[Battista Minola 1616]

Jamaica. Also before the Libyan revolution it was three, and then it became two, and it only became one when Mauritania added red stripes to its flag half a decade later (I've known this fact for years).

[bagelman]

Mauritania?