Is the Iraq campaign failing following the Baghdad bombing?
In a BBC HARDtalk interview broadcast on 20 August, Tim Sebastian speaks to Harlan Ullman, principal of the military doctrine of 'shock and awe' that the Pentagon embraced so whole heartedly with its invasion of Iraq, about how the campaign is going.
A massive explosion rips apart the UN headquarters in Baghdad and with it American claims that the country's returning to normality.
Harlan Ullman is a senior adviser to the Centre for Strategic and International Studies in Washington.
He is also principal of the military doctrine of "shock and awe", that the Pentagon embraced with its invasion of Iraq.
Mr Ullman talks to Tim Sebastian about why he thinks the Iraq campaign has gone so badly wrong.
Pushed on how the US would react now that "shock and awe" was being used against American forces in Iraq he says that it had been one of the questions raised when working on the theory.
"Clearly in 1983 and the bombing of the American barracks in Beirut and of course in Mogadishu we saw the inverse of shock and awe and of course we're seeing this happen in Iraq right now," he says.
Harlan Ullman has been highly critical of the US approach in Iraq and believes that the US should have taken a more measured response by exhausting all methods at the United Nations before invading Iraq.
"I think that the administration was too keen to listen to the Iraqi National Congress and Ahmed Chalabi."
He believes that a strategy to win the peace had never been properly thought out.
"We simply underestimated how difficult this task was going to be. The Pentagon was interested in winning and waging a war. Nobody thought it was going to be as difficult as it was.
" Many people in the administration truly believed we would be welcomed not as occupiers but as liberators and I think that that was a huge miscalculation," he says.
HARDtalk can be seen on BBC World at 03:30 GMT, 08:30 GMT, 11:30 GMT, 15:30 GMT, 18:30 GMT and 22:30 GMT.
It can also be seen on BBC News 24 at 03:30 and 23:30