Apparently you don't get it since you only quoted what you wanted too.. You missed posting this little tidbit:
"The petition formalizes a widely held sentiment among many legislators — and among Iraqis in general — that American troops should withdraw as soon as possible, though not before Iraqi forces are prepared to assume control of the country’s security.
and this one too:
"But in another respect the petition brings the majority of Iraqi legislators into agreement with the Bush administration: both argue that an American withdrawal should depend on the readiness of Iraqi troops.
How sad your post is....
It should be obvious to anyone, except maybe those who want a due date for political reasons, that giving a date for withdrawal only aids the insurgents....