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By Stijn Mitzer and Joost Oliemans
Jaish al-Islam has once again deployed one if its 9K33 Osa mobile surface-to-air missile (SAM) systems in an effort to shoot down a Syrian Arab Air Force (SyAAF) helicopter flying over Eastern Ghouta, Damascus on the 26th of June 2016. Although Jaish al-Islam quickly announced it had successfully shot down the helicopter with a single 9M33 missile, the damaged Mi-25 managed to return safely to Damascus International Airport. In the following days, the SyAAF lost several aircraft flying over or near Jaish al-Islam held territory, once again putting the spotlight on Jaish al-Islam's 9K33 Osa.