The first or second?
North
They won the seven days battle, Second Battle of Bull Run, Fredericksburg, Chancellorsville.
The Confederates.
Yes, they did.
NORTH
The North won.
south
The north was fighting the south and the north win the battle of the war
The south, under Robert E Lee.
the north learned that they weren't invincible and the south learned that they can win battles
the south won the battle of Fort Wagner and they also showed how valueable the blacks were
In some ways. It proved that the South could not win when it came to fight on northern land. If the South couldn't win in the North then they could not win the war.