1 and 2
The states as parts of the country would be under the jurisdiction of the us government and the president requires approval from congress
Well, there a couple of ways how one is the religious worship that has shaped the country like Judaism which one of the primary religion there. another way could be the culture they have and celebration. one celebration they have is Shabbat which is the Jewish day of rest
The goal was to stop the spread of Communism.
(Look into Domino Theory.)
D: The conquests brought great power and wealth to the Romans.