For years there has been a swirl of controversy and mystery surrounding the landing of BA flight 149 in Kuwait during an Iraqi invasion in 1990 - with the claim that the UK government used it for a secret mission which resulted in passengers and crew suffering abuse in captivity for five months.
British Airways flight 149 departed London on the evening of 1 August, 1990, and headed into Kuwait for a scheduled stopover on its way to Asia, even as the invasion began that night. It landed on the morning of 2 August - the only plane to land at that time as other airlines diverted their flights.
Anthony Paice was posted to Kuwait in 1988. He had what he calls "responsibility for political intelligence", although he has previously been named as an MI6 officer working undercover at the British Embassy.
He says he has been unable to speak out against "false accusation and injustices" because of the Official Secrets Act, but now he says he wants to go public in solidarity with those who suffered.
"I am convinced that the military intelligence exploitation of British Airways flight 149 did take place, despite repeated official denials," Mr Paice says.
He tells the BBC he believes there was a "hastily prepared attempt to put intelligence boots on the ground" run by the military and special forces, which he and the ambassador were unaware of.
"We knew absolutely nothing," he says, arguing it was intended as a "deniable operation". There had been accusations Mr Paice was involved in the operation or had misled BA about whether the flight could land. He says these claims are wrong.