Answer:
read below
Explanation:
Because they are appointed for life, Justices are able to change the fundamental structure in the country. For instance, someone who doesn't believe in abortion, or immigrants, will generally vote against such case when they come up for trial. Because they are appointed for life, there is a higher chance on them dealing with a controversial subject like Abortion, Healthcare etc.
The reason it was such a huge mistake was because the weapons were much more modern during the Civil War. Napoleon had weapons that fit to his strategies which was why his strategies were so famous for his day in age. The weapons they used in the Civil War were more powerful, and much more accurate.
White House Chief of Staff