
Signing on to American plans to topple Saddam Hussein amid false claims that the Iraqi dictator was developing weapons of mass destruction was the most controversial decision of Mr Blair’s time at Number 10.
Giving a full picture of what happened could mean Mr Blair revealing details he is planning to keep secret until his memoirs – for which he received £5million – are published.
A spokesman for the former Labour leader said: “This was a decision for the current prime minister, not for Tony Blair.”