dude, you cannot UNFOUGHT the war, like again, you go into a casino with $5,000 sollar in your pocket, after a few black jack, you get $10,000 from the casino, but in the end of the day, you lost all 15,000. Can you, at this point, ask the casino, "HEY, CAN YOU GIVE ME BACK MY 5,000 AND CALL IT EVEN??"
You choose to attack first, you lost, you cannot have your land back, even it is a big concession the Israel willing to accept a state of palestine, but asking them to return the land they occupied when you attack first is almost impossible.