<span> - The reason that the northerners opposed the war was that they had economic ties with the South and they feared that a war would negatively affect them financially. They also did not support the war because of their religious belief that violence and slavery were unjust and against God’s will.
- When the opposition turned violent, President Lincoln sent his troops to border states keep order and suspended the right of habeas corpus, and jailed people who opposed him. </span>
Answer: The tariff helped to increase Nationalism and helped the economy because it protected American goods of foreign competition and the US could buy cheaper products.
