The Chilcot report has concluded that the UK went to war in Iraq in 2003 before all peaceful options for disarming leader Saddam Hussein were exhausted, and it was not a "last resort".
The families of some of the 179 servicemen and women who died in the Iraq War have been reacting to its findings.
14:24 It's 'rediculous': Donald Trump denies he will be working on 'Celebrity Apprentice' during presidency, slams CNN for 'FAKE NEWS'11
13:03 Niall Horan, Shawn Mendes, Emeli Sande to perform on 'New Year's Rockin' Eve' special13
17:20 Trump to stay on 'Celebrity Apprentice' in his 'spare time'33
12:35 Hong Kong leader C.Y. Leung will not seek re-election12