"Mient Jan Faber's importance spread beyond his role at the heart of the Dutch pacifist movement," PAX said in a statement.

"During the 1980s, Mr Faber was one of the uncontested leaders of the European pacifist movement," it said.

The campaign "contributed to the fall of the Wall", according to PAX, which descends from the IKV militant Christian association for peace that Faber led.

The Dutchman had in the 1980s tirelessly pressured the Dutch government and even NATO to undertake nuclear disarmament, and organised protests which had drawn hundreds of thousands of people in the Netherlands.

Faber had also worked with the Czech writer Vaclav Havel, who became after the fall of communism the first democratically-elected president of Czechoslovakia and then later president of the Czech Republic.

The Dutch pacifist had later been involved in the campaign for "truth and justice" for relatives of the victims of the massacre at Srebrenica amid the war in Bosnia.

The enclave had been declared a UN safe zone in 1993 and was in principle under the protection of a battalion of 200 Dutch peackeeping troops.

The Netherlands had been judged partially responsible for the massacre.