Why would the Confederate soldiers do us much damage to their own country before Union soldiers would arrive?

They didn´t want to leave anything useful behind. They blew up bridges so the Union couldn´t cross rivers, chopped down trees to block roads, and bur…

Explanation:

the answer is c. to explore the louisiana purchase

bloodiest single day of war   |   gettysburg

where the civil war ends for good   | appomattox court house

the first major land battle; south wins | bull run/manassas (va)

gives union control of the mississippi river |   vicksburg

lee’s first tactical defeat; big win for union |   fort sumter1

with lincoln's re-election |   atlanta

south wins

splits confederacy in two for the duration of the war,

antietam