I have now added all(almost, some flags already made aren't included) flags. Here are some European flags I created. Anyone can use these, but please credit me if you use them. Please take screen shots and put them in the comments as I can't open civ at the moment. Some of them are based on RFC and Wikipedia.
A list of the flags can be found on this wikipedia page. (I didn't include Dependent territories)
Screenshots:
A list of the flags can be found on this wikipedia page. (I didn't include Dependent territories)
Screenshots:
Spoiler :
