Thirty years ago, in May 1982, a peace camp was established at RAF Upper Heyford, north Oxfordshire.
During the Cold War, Upper Heyford served as a base for the United States Air Force Strategic Air Command (SAC) strategic bombers and later for the United States Air Forces In Europe (USAFE) tactical reconnaissance, fighter and fighter-bomber aircraft in the UK.
The peace camp continued for two years: protesting against the presence of US nuclear-bomb-carrying F-111s and the role of the base in the event of a nuclear war.
A demonstration in 1983 saw 4000 campaigners shut down the base for four days and resulted in the arrest of 752 activists.
Thirty years on, original peace campers will return to Heyford on 7 May to discuss their experiences and to describe how they are opposing the replacement of Trident, Britain's nuclear weapons system.