Supposedly Pickett's Charge could have swung it, but it narrowly failed.
The Union was the North at the Battle of Gettysburg. The Army of the Potomac was the army on the field.
Gettysburg forced Lee to abandon his invasion of the North, but it did not prevent it.
The Confederate army never went north again.
No one who was a witness to the Battle of Gettysburg would doubt either the honor or the valor of the Army of Northern Virgina. The Confederate infantry who fought there belong to the Ages.
The North - The Union army was commanded by Gordon Meade.
George Meade commanded the Army of the Potomac.
The Confederate army never went north again.
The Union army had 85,000 men at Gettysburg.
The Southern Army came in from the north through Maryland (Cashtown). The North came in from the South.
Chancellorsville
Meade commanded the army of the Potomac.
The Northern army was called the Army of the Potomac and was under the command of General George G. Meade.