Question

why would victories in the western theater have been important to the Union?

Answer 1

As a result, it was important for the Union to be seen as winning in the West to keep the settlers of the Southwest from allying too much with the Confederate army.

Answer 2

Explanation:

As a result, it was important for the Union to be seen as winning in the West to keep the settlers of the Southwest from allying too much with the Confederate army.