By shifting the focus from union to slavery, lincoln might have kept who out of the war?

The British (I think)

Explanation:

As they would have supported the South more but it would have been very difficult for the British to unite their people to a war if it would have supported slavery since there were labor issues arising in Britain at the time.

what are two things that greatly the american economy after the war? the huge buildup of u.s. military the beginning of the korean conflict the creation of the gi bill the marshall plan for nations