The Bush administration is developing plans to "internationalise" the Iraq crisis, including an expanded role for the United Nations, as a way of reducing overall US responsibility for Iraq's future and limiting domestic political fallout from the war as the 2008 election season approaches.
It certainly appears that the US was willing to snub the international community when it perceived itself as invincible in advance of the war, and that it now wants to hand off the conflict to the international community as it spirals out of control.
This is my favorite bit, just for the mixed metaphors:
"Petraeus is brilliant. But he is the captain of a sinking ship," said a former senior administration official who questioned whether Iraq's divided political leadership could prevent a descent into chaos. "Iraq's government is a mobile phone number that doesn't answer. Iraq probably can't be fixed."