The beings have repeated their efforts in the US and have been active since 1948, the men said, and accused the respective governments of trying to keep the information secret.

The unlikely claims were compiled by six former US airmen and another member of the military who interviewed or researched the evidence of 120 ex-military personnel.

The information they have collected suggests that aliens could have landed on Earth as recently as seven years ago.

The men’s aim is to press the two governments to recognise the long-standing extra-terrestrial visits as fact.

They are to be presented on Monday 27 September at a meeting in Washington.

One of the men, Capt Robert Salas, said: “The US Air Force is lying about the national security implications of unidentified aerial objects at nuclear bases and we can prove it.”

He said said he witnessed such an event first-hand on March 16, 1967, at Malmstrom Air Force Base in Montana which housed Minuteman nuclear missiles.

Continue www.telegraph.co.uk/news/newstopics/howaboutthat/ufo/8026971/Aliens-have-deactivated-British-and-US-nuclear-missiles-say-US-military-pilots.html

CNN will be covering it live here

www.cnn.com/video/flashLive/live.html?stream=stream1

Meeting today…

Witness Testimony-UFO’s at Nuclear Weapons Bases

News conferences

Location: Holeman lounge