Answer:
1. Issues on things like marriage laws, political beliefs and military ideas are all topics that are widely debated as a country.
2. i dont have your textbook but i would say that the abolishment of slavery and the confederacy's unwillingness to back down would be the main causes.
Step-by-step explanation:
Things such as marriage laws and military tactics are all widely debated today because of political, economical and religious standpoints. These points will differ between cultures and the viewpoints and ideas of one culture could be the exact opposite of another. Finding a common ground, understanding, and compromise between the two ideas is the most important part.