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Abu Musab al Zarqawi forms al Qaeda in Iraq
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Zarqawi is killed in a U.S. strike and then Abu Ayyub al Masri takes his place.
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al Masri announces the establishment of the Islamic State. Abu Omar al Baghdadi took the role of leader.
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ISI had lost many members. By early 2008, 2,400 ISI members had been killed and 8,800 were captured, out of 15,000 members.
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Baghdadi moves from Iraq to Syria. Julani of Syria denies the alliances offer and fell under allegiance to al Qaeda.
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ISIS attacks the Shaer gas field and kills 270 people.
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ISIS take overs Ramadi, Iraq.
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ISIS claims responsibility for the suicide attacks on a Shiite mosque in eastern Saudi Arabia, which killed 21 people and injured more than 100.
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4 Islamic State (IS) militants attacked Sardar Mohammad Daud Khan hospital, the largest military hospital in Kabul, killing more than 30 people and injuring more than 50.
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Anti-ISIL forces retake control of Tabqa and the Tabqa Dam from ISIL in the Battle of Tabqa. (Islamic State of Iraq and the Levant)
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Iraqi forces recapture Rawa, the last town held by ISIL in Iraq.
