I have to say I'm sceptical. Many of the neo-cons after all are very close to right-wing Israeli circles and I really do not remember Israeli political or military leaders loudly saying before the war that invading Iraq was a mistake. I have to say that I've always assumed that one of the reasons for the US wanting to invade Iraq was Israeli urging and, possibly, intelligence provided by Israel. But I'm happy to change my mind if you have any strong evidence to back up your assertions.
Shaffir to Herzog: Opposition failed to show leadership in political battles against PM (Haaretz)
from the article: Will the U.S. withdrawal from Iraq threaten Saudi Arabia and Israel?