Do all nations have guardian angels?

I am reading *An exorcist tells his story*, and in it the author discusses guardian angels. The author says the following (translated by Google translate from Italian): > They are our great allies, we owe them so much and it is a mistake that so little is said about them. Each of us has his guardian angel, a faithful friend 24 hours a day, from conception to death. He protects us incessantly in soul and body; and we, for the most part, don't even think about it. **We know that even nations have their own particular angel** and this probably also happens for every community, perhaps for the same family, even if we are not sure of this. According to the Catholic Church, do all nations have their guardian angels?