It's now been six years since the US went to war in Iraq and while the end of the U.S. mission there is in sight, Iraq's future isn't entirely clear.
The war that began under President George W. Bush is starting to end under his successor, President Barack Obama. All American forces are due to leave Iraq by 2012 and the military says attack levels are way down
But Brig. Gen. General Dan Allyn admits security remains fragile, and Defense Secretary Robert Gates says the key is whether Iraqis can reconcile their sharp sectarian divisions.
The U.S. has lost more than 4200 service members and an estimated 91,000 Iraqi civilians have died since the invasion.
The fighting is still raging in parts of the mostly Sunni north.