They fought over the moral issue of slavery.
Butt this is what google told me xD
They fought over many reasons like...
Industry vs. Farming. ...
States' Rights. The idea of states' rights was not new to the Civil War. ...
Expansion. As the United States continued to expand westward, each new state added to the country shifted the power between the North and the South. ...
Slavery. ...
Bleeding Kansas. ...
Abraham Lincoln. ...
Secession. ...
Activities.
The mercantilism policy served to increase tensions and conflict between great
Britain and its American colonies. the policy,coined by Adam smith was the practice by several European countries to allow exports and discourage import, hence exports were encouraged from Great Britain but imports were not from the colonies.
<span> protect their cities from enemy invasion. I mean, how could mere pillars protect whole cities from enemies? I wouldn't say they were used for such protective purposes.</span>
Answer:
They were selfish, low morale and values, ruthless leaders, many environmental and health issues, excessive military spending, inflation, rise in christianity, 25 emperors had been assassinated, urban decay, corruption unemployment.