The Palestinians attacked the Israeli's first! That's why Israeli's fought them in the first place, because Palestinians were trying to throw them out for no reason!

But if it was never claimed by them, it wasn't legally theirs.

Chew on this for a second: The Israelis came onto the land when the Palestinians were there, but when the Palestinians attacked them for no reason, the Jews fought back to win the land. They won it FAIR AND SQUARE! Not to mention, the Palestinians never even claimed the land, so technically it was nobodies land when the Israelis came in, so they made it theirs.