From a U.S. Central Command News Release
WASHINGTON, Sept. 10, 2014 – U.S. military forces continued to attack the Islamic State of Iraq and the Levant terrorists in Iraq, using an attack aircraft to conduct one airstrike yesterday in support of Iraqi Security Forces' defense of Irbil operations.
The strike destroyed one ISIL armed vehicle in the vicinity of Irbil. The aircraft exited the strike area safely.
The strike was conducted under authority to protect U.S. personnel and facilities, support humanitarian efforts, and support Iraqi forces that are acting in furtherance of these objectives.
U.S. Central Command has conducted a total of 154 airstrikes across Iraq.