In a letter dated February 27 2008, Mr Blair wrote to Gaddafi following his visit to Tripoli and then on to Washington. In the letter, which was discovered after Gaddafi was overthrown but whose significance can now be disclosed, Mr Blair wrote: “Dear Muammar” and concluded: “I also raised some of our conversation with president Bush and would be very happy to let you know how those talks went, With my best wishes, yours ever Tony.”