What was the main reason the north entered the civil war in 1861 ? A. To preserve the union B. To librate slaves c. To prevent unfair tarrifs D. To prevent european trade with the south

Respuesta :

Your answer is going to be B.
To liberate slaves was the main reason the north entered the civil war in 1861. So B is your answer :) hope this helped ^^

~ShadowGivesYouA20