Speaking on BBC1's Andrew Marr show, Mr Hague said "clarity" was needed on the future for Britain's deployment in Iraq.
And he demanded: "It is very important to commence the full-scale Privy Council inquiry into the origins and conduct of the war, because if we are not going to start it now, five years on from the beginning of the war, then when on earth would we have such an inquiry?
Tories call for full Iraq inquiry
Israeli Prime Minister Benjamin Netanyahu claimed in an interview with Fox News on Sunday that Christians...
Israeli Prime Minister Benjamin Netanyahu and Defence Minister Israel Katz have said that troops will maintain...
