Do Spiritual Forces Hover Over Cultures And Effect Ethnic Groups And Nations?

It's a fascinating concept: that spiritual forces hover over areas. But what about cultures. Could it be that evil forces as well as angelic ones affect entire nations? We know from Paul in Ephesians 3 that "our struggle is not against flesh and blood, but against the rulers, against the powers, against the world forces of this darkness, against the spiritual forces of wickedness in the heavenly places." If that's not clear enough, there is Daniel, wherein it's stated that "the prince of the kingdom of Persia was withstanding me for twenty-one days; then behold, Michael, one of the chief princes, came to help me, for I had been left there with the kings of Persia." The spiritual "prince" of a region is known as a "principality." Those in spiritual warfare maintain that there are such forces assigned to every church, every community, and on a larger scale, every country. Would this not explain certain unsettling traits and habits and bondages of certain regions? Start with Persia: that's what we now know as Iran and that there is a dark stronghold over that nation is something that seems apparent. In China there's an ancient idolatry of strange gods -- of the dragon -- and look at the morality in China (when it comes to abortion, religious freedom, and human dignity). In Scandinavian nations, there is the tendency toward paganism, or simple and cold disbelief. In Africa the bondage of voodoo may be liable for the miseries there. In Iraq is ancient Babylon -- and constant turmoil, as we also find on old pagan stomping grounds in nations such as Egypt. Where blood has been spilled in ritual, or where land was cursed, we see today the results or at least the residue.