TOPSHOTS Iraqi civilians volunteering to fight a militant offensive gather themselves together on June 15, 2014, in the southern port city of Basra before going to Iraqi second city Mosul. Leading Shiite cleric Grand Ayatollah Ali al-Sistani urged Iraqis on June 13 to take up arms against Sunni militants marching on Baghdad, as thousands volunteered to bolster the capital's defences. AFP PHOTO/ STR