Answer:
Sectionalism: Concern for one's region over concern for the entire nation.
Popular Sovereignty: the idea that people should be able to vote on important issues
States' Rights: the idea that states should hold the most political power
Nullify: to invalidate something or make it null and void.
Explanation:
the Palestine-Israel conflict
the collapse of the Soviet empire
political instability in the Middle East
Answer:
produce loyal citizens who contributed to the economy