From The New York Times:

As the threat from Sunni militants in western Iraq escalated last month, Prime Minister Nuri Kamal al-Maliki secretly asked the Obama administration to consider carrying out airstrikes against extremist staging areas, according to Iraqi and American officials.

But Iraq’s appeals for a military response have so far been rebuffed by the White House, which has been reluctant to open a new chapter in a conflict that President Obama has insisted was over when the United States withdrew the last of its forces from Iraq in 2011.