epa04345798 A handout image released by the US Marines via DVIDS shows an F/A-128 Hornet taking off from Marine Corps Air Station (MCAS) Miramar, California, USA, 21 May 2012. A US F/A-18 combat jet on 08 August 2014 dropped 500-pound laser-guided bombs on a mobile artillery piece belonging to Islamic State militants near Erbil, northern Iraq, the Pentagon said in a statement. The artillery was being used against Kurdish forces defending the city, and also threatened US personnel and facilities in the region, the statement said. EPA/CPL. JAMEAN BERRY / HANDOUT EDITORIAL USE ONLY