In May 1982, a peace camp was established at RAF Upper Heyford, north Oxfordshire. On 7 May, original peace campers will return to Heyford to discuss their experiences and their opposition to Trident.
The Campaign for Nuclear Disarmament is preparing to mark the 30th anniversary of the arrival of the first activists at the Greenham Common US Air Force base.
Christians in eastern Germany have launched a campaign to mark the 20th anniversary of the peaceful revolution that overthrew communism, with a light sculpture shone onto the walls of the regional parliament building in Erfurt.
US Democratic presidential candidate Barack Obama is today making an unprecedented campaign pitch in Berlin, Germany, and has drawn an enthusiastic crowd of 100,000. But how will this go down in the USA?