The Purpose was to Abolish (Get rid of) Slavery, after the civil war began the "Reconstruction Era" where many people wanted to Reconstruct America after the Civil War, Examples of this was the 13th Amendment (No more Slavery).
Answer: a proxy war is started by a major power, but they do not themselves become involved
Explanation:
The north helped the south with reconstruction after the south lost the civil war by surrendering to the North which was run by Abraham Lincoln.
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He created the school of Fontainbleau