Britain has been far from a stranger to conflict and colonisation over the years. Astoundingly though, as our chart shows, there are only 22 countries which have never been invaded by the Brits. According to the book "All the Countries We’ve Ever Invaded: And the Few We Never Got Round To", there are only 22 countries Britain never invaded throughout the course of history. There aren't many gaps on the map, but some of the more notable include Sweden, Belarus and Vatican City.