The Campaign for Nuclear Disarmament was created in 1957 to react to the growing importance of nuclear weapons in the world. Everyone was scared of what could happen since they had seen the consequences in Hiroshima. They fought for disarmament and in November 1957, J.B. Priestley wrote in the New Statesman magazine "In plain words: now that Britain has told the world she has the H-bomb she should announce as early as possible that she has done with it, that she proposes to reject, in all circumstances, nuclear warfare." In 1958, CND organized a march of protest from London to Aldermaston, the Atomic weapons research establishment which became quite popular over the years. In 1959, 60,000 people took part in the march and in 1961, they were 150,000.
There was a group of activists called Spies for Peace who thought that quiet marches were not going to do anything. So they broke into the Regional Seat of Government number 6 and stole secrets and nuclear plans of the government that they revealed publicly. This was a scandal since it showed that Britain was considering nuclear war as a real possibility and preparing for it. The government soon censored anything about it in the newspapers but abandoned the project.
The protest against nuclear weapons ultimately failed in Britain but it opened the door to the same objections in other