Britain's Iraq Inquiry is set to explode into life this week with a claim that the war was illegal.
The foreign office's top legal adviser at the time of the Iraq invasion is set to tell the inquiry he believed it was unlawful to invade.
It will come just days before Tony Blair will face questions about his decision surrounding the 2003 invasion as Prime Minister.
The invasion split British public opinion and spawned a massive protest movement, and any remaining support for the invasion steadily withered away as Iraq descended into chaos in the wake of the war.
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3 News / AP