The Romans were on a bad position on the map. If they were isolated surrounded by seas like Japan back in that time, the kamikaze may have swept the Mongolia's fleets away. If the Romans were placed on America, probably they would have less chance being threaten by Mongolia. Too bad for them.
There is only one thing that can destroy this country.
The repealing of our Second Amendment rights. When that day comes, the police state will rise. And now you know why the ACLU wants our guns taken away.