Iraq sectarian conflict creates misery
22 December 2013 Last updated at 07:53 GMT
As the war in Syria escalates, the violent reverberations are being felt beyond its borders.
Al-Qaeda in Iraq is feeding off gains made by Sunni extremists in Syria and waging an increasingly ferocious campaign of suicide attacks, car bombings and assassinations.
In turn, a brutal government crackdown on suspected insurgents is leaving the Sunni population feeling isolated and repressed.
There are fears that renewed sectarian tensions could once again overwhelm the country.
Quentin Somerville reports from Baghdad.