In 45 seconds: How strong is Iraq's army?
17 June 2014 Last updated at 16:24 BST
Iraq's army has benefited from years of US and British training, as well as billions of dollars in military aid.
But it has lost major Iraqi cities - including Mosul, Tikrit and Falluja - to a far smaller number of Jihadist militants.
The BBC assesses how strong the army really is - in 45 seconds.
Video produced by Michael Hirst.