The current situation within Iraq is not a war. Iraq has an internal policing security problem. Look at how even Saddam's lawyer are being killed. Then of course every Islamic extremist who has been brainwashed by the 'hate America' crowd has been making a pilgrimage to Iraq to fight the 'Great Satan'. This has given the US the ability to kill off these hate America extremists before they have the chance to infiltrate the US homeland.
The absolute worse thing for America to do would be to leave Iraq before it solves its internal security problem. No surprise that the French aligned politicians are suggesting that we leave Iraq right now.
I thought you might have been suggesting that we must leave before that internal security problem is greatly improved..