When voters do not believe they have political efficacy, it generally means that "<span>A. Voters believe their votes will have no impact in an election", since this impacts their ability to change government and governmental policies. </span>
The space invaders is the answer
The political situation in Vietnam during the 1950's was almost the same as the situation in Korea. The reason for this statement is that in both countries there were two parts, North and South, being politically opposed, and being supported by the USSR and the US. The North, in both Vietnam and Korea were with communist ideologies, and both of them were supported by the USSR. The South, in both Vietnam and Korea were with nationalist ideologies, and both were supported by the US. In both situations, the North was stronger, if the situation was that the combat was going to be one on one without the foreign support.
Laws would vary from one State to the other, which would make it difficult to adhere to if you're not from that State. Also, politics would play into effect. I'd like to use the American Civil War as an example; some states were for Slavery, meanwhile others sided on the abolishment side. That could come into play here, and that could be extremely dangerous.