Answer:
Because the class antagonism in the United States was irreconcilable at that time, the antagonism of different interest groups was uncompromising and could only be solved through the war.
Explanation:
Apparently it is a true story, like a paradise island
I believe D I have read about them but I don't quite remember
Answer:
From the first days of the Civil War, slaves had acted to secure their own liberty. The Emancipation Proclamation confirmed their insistence that the war for the Union must become a war for freedom.
Explanation:
It added moral force to the Union cause and strengthened the Union both militarily and politically.
