If you're asking in general then, the area has to have people who share common customs, belief and language.However, this might not entirely be true as there are some countries which have vast diversity and still portray nationalism.
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a world with two sources of power is ideal and futuristic
Answer:
Congress can override a veto by passing the act by a two-thirds vote in both the House and the Senate. (Usually an act is passed with a simple majority.)
Explanation:
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Better Equipment
Explanation:
The Confederacy had much better leadership than the Union. The Union made the most of all of their natural resources, which they had a lot of. They had a large manufacturing industry, meaning they could produce new equipment and technology, including the railroad system.