He revealed for the first time what he claimed to be a genuine letter from the French ministry detailing an experiment he convinced them to take part in to make contact with extra-terrestrial beings.
The medic turned Ufologist, who set up the Disclosure Project and the Center for the Study of Extraterrestrial Intelligence (CSETI), also called on London and members of the public worldwide to “rise up and change things” by demanding an end to UFO secrecy.
Dr Greer, who claims he is threatened by so-called “Men in Black” on a weekly basis, said top French MoD officials summoned an alien craft in 2010.
It was confirmed on radar as passing overhead at 120,000 miles per hour.
He also claimed an “alien ambassador” from the Andromeda galaxy partially materialised in front of the French leaders during the experiment on a sealed-off 220-acre estate. It had a no-fly zone above to prevent any normal aircraft passing.
He said: “This is not classified so I can share it with you, I did not release it before because I was just giving them time to prepare.”
•A secretive “illegal” organisation of corrupt global and military leaders is based underground where it actually runs the world and is desperate to withhold the truth about alien visitation to avoid the collapse of religion, the economy and world leadership.
•Many world leaders and royals like US president Barack Obama, British Prime Minister David Cameron, and even Prince Charles, are not privy to the secretive information and are just “puppet leaders” put in place by the secret elite to make it appear as though we live in democracies
•Honest politicians who have pressed for disclosure have been warned off, kidnapped and even killed, but he is in talks with an unnamed major superpower (not US, UK or France) considering imminent disclosure
•Aliens could provide Earth with free unlimited and environmental energy supplies, but elite leaders won’t allow this because of vested interests in the fossil fuel and nuclear power industries
•Around $14trillion (Up to $200billion a year) has gone missing from the US defence budget secretly syphoned off by the corrupt elite to prevent disclosure
•Former US president Ronald Regan was in on the secret and his so-called “Star Wars” space defence programme was really to blow up hostile UFOs
•Earth astronauts are banned by higher ET civilisations from venturing any further than the Moon until we “stop killing each other”
•He once briefed 120 world and business leaders about making contact on an island of Australia’s Great Barrier Reef
Dr Greer said inter-stellar civilisations were graded on levels of how advanced and enlightened they were from one upwards, but Earth scored zero because we keep killing each other.
But, whereas he claimed “men in black thugs” frightened off mainstream US MoD officials, he said the French ignored similar threats, leading to nasty contact from the secretive officials.
He made a call to arms to paranormal enthusiasts to try and make contact with aliens to get the authorities off his back.
He said: “If we all do it they can’t keep tracks on us all.
Not everyone who has heard his claims are convinced by them.
Debunking website Occupy Theory said after looking into his claims: “The problem that Steven Greer has is that in order to establish his own credibility, he has been forced to exaggerate.
“Even his alleged conversation about UFOs with the director of the CIA was not anywhere near what everyone else at that gathering remembers and they put their memories into response letters to discredit Greer’s claims.
In a post by Alien Embryo on Unexplained-mysteries.com, he wrote: “Steven Greer is not who he claims to be, he is working for the CIA. The CIA knows people want answers and wants this technology made public.
“The disclosure project is to slow people down, it was created to give people a false hope for “disclosure”. If we leave “disclosure” up to the disclosure project it will never happen.”
Express.co.uk has put Dr Greer’s claims to the French MoD and awaits a response.