Question

Select the correct answer.

Which war resulted in territorial gains for the United States that caused sectional conflict in the years leading up to the Civil War?

A.
Revolutionary War
B.
War of 1812
C.
Mexican War
D.
Spanish-American War

Answer 1

The Mexican-American War

Explanation :

The Mexican-American War allowed for the United States to gain and conquer the Southwest. This war also caused sectional conflict in the years leading up to the Civil War.