Tony Blair's decision to take Britain to war in Iraq was illegal, the Foreign Office's former chief legal adviser will tell the Chilcot inquiry this week.
The Observer has been told that Sir Michael Wood, who was the FO's most senior lawyer, is ready to reveal that, in the run-up to war, he was of the opinion that the conflict would have been unlawful without a second UN resolution. This will provide an explosive backdrop to the former prime minister's appearance before the inquiry on Friday.
Iraq war was illegal, top lawyer will tell Chilcot inquiry
