A fighter from the Islamic State, formerly known as the Islamic State of Iraq and the Levant (ISIL), mans an anti-aircraft gun mounted on the rear of a vehicle in Mosul, Iraq, July 16, 2014. VOA
ISIL Hit U.S. F-15 With Anti-Aircaft Batteries Captured From Iraq -- World Tribune
WASHINGTON — Islamic State of Iraq and Levant has been operating anti-aircraft batteries stolen from the Iraqi military.
Officials said the U.S. military has determined that ISIL deployed an unspecified number of anti-aircraft artillery to counter Western air strikes in northern Iraq.
Western diplomatic sources said ISIL struck at least one U.S. aircraft. They said an F-15 fighter-jet was hit by ISIL fire in late August that damaged the hydraulic system and forced the aircraft to land in neighboring Turkey.
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Update: Forced landing of U.S. F-15 hit by ISIL fire spotlights Turkey’s neutrality in new war -- World Tribune
My Comment: This is a wake call on how dangerous the situation is becoming. Interestingly ... with the exception of a few blogs .... no one else in the media has covered this story.