The official, who spoke on the condition of anonymity because he was not allowed to make statements to the media, was severely critical of the Obama administration for its handling of the Iraq crisis and for failing, in his view, to better prepare the country’s military for an emergency.

“If you’re in an antique shop there’s a sign, ‘If you broke it, you bought it,’” the official, who is an adviser to Prime Minister Nouri al-Maliki, said. “I am not saying the Americans are responsible for everything, but they did not leave a well-trained army, and they left us without any real air support, and the Obama administration really shares much of the blame.”

U.S. military and intelligence officials have painted a sharply different picture, saying the Iraqi military collapse reflected poor leadership, declining troop morale and broken equipment, subverting a $25 billion effort by the United States to train and equip Iraq’s security forces.

The al-Maliki adviser said the Iraqi government wanted air support and intelligence sharing in particular from the United States. So far, the adviser said, he was not aware of any direct Iranian role in Iraq, nor the presence of any Iranian units on Iraqi territory. “What changes this is if the U.S. does not help, Iran will come in, and this is really dangerous,” he said.

The adviser said the Iraqi government was not to blame alone for the success of the Islamic State of Iraq and the Levant’s advance through the north of the country. He blamed Turkey, because it was angry over Iraqi support for the regime of President Bashar Assad of Syria, and the Kurds, who wanted to profit from Iraqi weakness in the north, which on Thursday helped them to take Kirkuk, an oil rich prize long shared between the Arabs and the Kurds in an uneasy truce.

“So yes there are cases where the Iraqi army disappeared but you have to take the locality in context,” the adviser said. “The 2nd Division of the Iraqi Army is 80 percent Kurds and 20 percent locals, the Kurds withdrew to the Kurdish areas and this started a panic.”