"What would have happened if Lee had not won the battle of Gettysburg?"
Did I gloss over the part where we suddenly entered Bizarro Alternate History world, or WTF?!?
Lee didn't win the Battle of Gettysburg, so either you meant to type "lost" instead of "won", or else "Grant" instead of "Lee", if we're actually talking alternative history than reality.
Or, you had a stroke. Or Biden is ghostwriting this piece, and thinks Lee was fighting in Iraq.
Please advise.