Venn diagram showing country flags. Parts from:
Red
File:Flag of Germany.svg
File:Flag of Romania.svg
Red, green and white
File:Flag of Wales (1959–present).svg
Green
File:Flag of Jamaica.svg
White:
File:Flag of Scotland.svg
File:Flag of Saint David.svg
File:Flag of Brittany (Gwenn ha du).svg
Red and white
Flag of the Isle of Mann.svg
Red and green:
File:Flag of Bangladesh (WFB 2004).gif
White and green:
File:Flag of Nigeria.svg
Not red, green and white

File:Flag of Sweden.svg
Own work
Llywelyn2000