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Photo by: Jaber al-Helo

Volunteers in the newly formed "Peace Brigades" participate in a parade near the Imam Ali shrine in the southern holy Shiite city of Najaf, Iraq, Thursday, June 19, 2014, after called for by the radical Shiite cleric Muqtatda al-Sadr to form brigades to protect Shiite holy shrines against possible attacks by Sunni militants. (AP Photo/Jaber al-Helo)

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