Sailors launch aircraft from the flight deck of the aircraft carrier USS George H.W. Bush (CVN 77) in the Gulf, in this August 7, 2014 handout image released on August 8. Two F/A-18 aircraft conducted an airstrike on Friday against Islamic State artillery used against Kurdish forces defending the city of Arbil, near U.S. personnel, a Pentagon spokesman said. Picture taken August 7, 2014. (REUTERS/Mass Communication Specialist 3rd Class Joshua Card/U.S. Navy/Handout via Reuters)
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