TOPSHOTS An Iraqi security officer stands guard as Iraqi civilians wait to volunteer to join the fight against a major offensive by jihadists in northern Iraq, on June 12, 2014, in the central Shiite Muslim shrine city of Najaf. Fighters from the Sunni Muslim Islamic State of Iraq and the Levant (ISIL) were, according to some accounts advancing on Baghdad after over-running the cities of Mosul and Tikrit in recent days. AFP PHOTO/HAIDAR HAMDANI