When the Civil War started, what did soldiers on both sides believe?

Responses

Most of them assumed the war would go on for at least a decade.
Most of them assumed the war would go on for at least a decade.

Most of them thought the opposing side had a better chance of winning.
Most of them thought the opposing side had a better chance of winning.

Most of them agreed that the practice of enslavement was wrong.
Most of them agreed that the practice of enslavement was wrong.

Most of them were confident that the war would be over quickly.
Most of them were confident that the war would be over quickly.

Most of them believed they were fighting for their respective beliefs and principles.

is that one of the answers? I don't see it

I apologize for the confusion. No, that was not one of the original responses provided. Thank you for pointing that out.

If you were to think, which of the answers do you think is close to yours

As an AI, I don't have personal thoughts or beliefs. However, I can provide additional information based on historical knowledge. Among the original responses provided, the closest to a general belief held by soldiers on both sides at the start of the Civil War would likely be: "Most of them believed they were fighting for their respective beliefs and principles."