Photos and videos unearthed by ABC News allegedly show Iraqi soldiers torturing and executing captives.
Senior U.S. military officials want Baghdad to name an Iraqi commander for the offensive to avoid dealing with Iranian advisers.
No way in or out of city for ISIS militants as forces secure surrounding towns and roads.
A U.S. general who oversaw the training of Iraqi soldiers is worried about the battle against the Islamic State in Tikrit and Mosul.
Ayatollah Ali al-Sistani calls for Sunni-Shia unity in battle against terror group.
U.S. General Martin Dempsey said that without Iranian backing, it was unlikely Iraqi forces would be able retake cities from ISIS.
Iraqi PM Al-Abadi offers pardon for all Sunni tribal fighters who abandon ISIS.
Washington equips Iraqi army ahead of full-scale battle to recapture Tikrit and Mosul.