From this great piece, already widely blogged:

• Version 7.0 – We won’t need hundreds of thousands of troops—that’s wildly off the mark
• Version 7.1 – Mission accomplished
• Version 7.1.1 – We’ll stay as long as needed and not one day more
• Version 7.1.2 – The troops will be home in six months
• Version 7.1.3 – The Iraqi Army will provide security
• Version 7.1.4 – Where’s the Iraqi Army?
• Version 7.1.5 – We’ve disbanded the Iraqi Army