Answer:
Slavery.
Explanation:
The Civil War started because the Northern states wanted to abolish slavery and the Southern states wanted to keep their slaves.
Answer:
Montesquieu was a French lawyer, man of letters, and one of the most influential political philosophers of the Age of Enlightenment. His political theory work, particularly the idea of separation of powers, shaped the modern democratic government.
I think they supported France in order to expel Austria from Northern Italy