Verified answer

First of all, you listed a series of battles, not wars. There was the Civil War, and these battles were fought during the Civil War.

If you want to know who won the Civil War, do about .00000004 seconds of research online.

You can google or wikipedia these specific battles yourself if you want to know who won each battle. Clearly you have read the wrong books, or have not read them very closely if you cannot distinguish between a battle and a war.

Battle of bull run, - about a tie, but I would say Confederate

antietam, - Union Army

vicksburg, - Union Army

shiloh, Union

gettysburg -Union

Look it up yourself. This is pretty common information. You can google the answers.