London, July 7 (RHC)-- The sister of a British soldier killed in the Iraq war has called former UK prime minister Tony Blair the world's "worst terrorist" after hearing the Chilcot inquiry report into the UK role in the 2003 Iraq invasion.

"There is one terrorist that the world needs to be aware of and his name is Tony Blair, the world's worst terrorist," said Sarah O'Connor, the sister of Bob O'Connor who died in Iraq in 2005, at a press conference called by some of the dead soldiers' families.

She said that "when he (Blair) gave his evidence, it was definitely the Tony Blair show.  He thinks he's the puppet master pulling the strings."  She made clear that her family, along with a number of other families, would take legal action against Blair.  O'Connor said terrorists killed her brother, but 2in that sentence of terrorists, I include Mr Blair."

The Chilcot inquiry report said that military action was "not a last resort" and that the UK chose to go to war before the peaceful options had been exhausted.

The father of another soldier killed in the war said that Blair tried to write his own Iraq war report that was "completely" different from Chilcot report as he tried to defend his decision for the Iraq invasion during a press conference.

Roger Bacon, whose son Matthew died in the Iraqi city of Basra in 2005, said he was "amazed" while listening to Blair's statement that was a response to Chilcot report released earlier on Wednesday.  Bacon said the former premier's statement was a "huge justification" for his decisions as he clearly ignored what had happened in Iraq and what was happening there now.