What are the only six countries whose flag is only red, green and white?

National flags are the symbols that best represent a country facing the world. They are all different from each other, although about 75% of them are red. And, curiously, there are five countries that have the same three colors on the flag. Four of the countries are in Europe, one is in North America and another is in Asia. They are: Italy, Bulgaria, Hungary, Wales, Mexico, Iran. What symbolizes the flag of each country? Italy (left) and Bulgari…