War is the biggest export of the US, followed by films, according to Hollywood actress Susan Sarandon.
The federal government has issued less than a quarter of the 25,000 visas created for Iraqis who helped American efforts during the Iraq War and the programme is set to end this year.
David Petraeus has served as commander in two wars launched by US post 9/11.
Pentagon said Taliban insurgents are forced out of key southern strongholds.
UN human rights chiefs and experts launched a new offensive on the US conduct of its "war on terror" and conflicts in Iraq and Afghanistan.
Stars celebrate Christmas
Day in Pics: 26th December
Showbiz World - December 26, 2014