"Let the people of Iraq vote if they want the US to stay or leave"
Bob Kaye, Bohemia, US
Send us your views
The paper quotes Brigadier-General Vincent Brooks, the deputy commander of the First Cavalry Division which has responsibility for the Baghdad area, as saying that the operation "is at a difficult point right now, to be sure".
In an interview with the newspaper, Brooks said in many cases US troops were still undertaking functions, such as patrolling and manning checkpoints, that military officials had expected Iraqi troops and police to have taken over.
He said that in some cases the Iraq had not provided all the forces promised, and in some cases had performed poorly.
Meanwhile, violence in Iraq has continued, with the US military seeing its deadliest single attack on Sunday when four soldiers were killed by a bomb blast as they conducted an operation to seal off and search a neighbourhood in Baghdad.
Two other US soldiers were killed in a bomb attack in the Iraqi capital on the same day, with another killed outside Baghdad.
A day earlier, seven soldiers were killed by roadside bombs, the most common cause of US troop deaths in Iraq.