It really depends on which era, if the question asks about the Roman Republic, then it would be a republican government. In Ancient Rome, an aristocracy was used. In the Roman Empire, the emperor was the main man, but he also had a senate.
Hope this helps...
I will be different because more people will join the program and when the program expands the more people will be intrested and then the U.S has a more chance that people would want to join the army or military