Why did sectionalism in the u. s. increase in the late 1840s?

What did the us civil rights movement gain new momentum after world 2

Select all that apply. the reasons some governments fail are: the policies of leaders hurt the people leaders fail to recognize change they don’t restrict freedom enough leaders stay up on the times and change they don’t protect individual freedoms

Based on what you have learned, why would victories in the western theater have been important to the union?