Reiner Braun studied German Literature, History and Journalism.
Since 1982 he has been actively involved in the Peace Movement, working in the office of the “Krefelder Appeal” against new nuclear weapons in Europe. Since 1983 he was Executive Director for Scientist for Peace and Sustainability (Germany)
and since 1991 also of the International Network of Engineers and Scientists for Global Responsibility (INES).
Since 2004 Reiner Braun has been working for various projects related to the Einstein year at the Max Planck Institute for the History of Science in
Berlin and for the Max Planck Society.From 2006 till 2017 he was the Executive Director of German IALANA Germany, the international IALANA.
He worked from 20006 till 2012 also as Executive Director for the Vereinigung Deutscher Wissenschaftler (VDW), the German pugwash group.
Since September 2013 he is Co-president of the International Peace Bureau. He was one of the main organizer of the world congress of IPB September/October 2016 „Disarm for a climate of peace.
Since many years he is one of the speaker of the German peace movement. f.a. engaged in the campaign against the US Airbase in Ramstein and against NATO
He is author of several books „Einstein and Peace“ and a biography about the Peace Nobel Laureate Joseph Rotblat.
He is a speaker at many peace events. His main subjects are
- the militarization of Europe (EU and NATO)
- military spending
- responsibility of scientists: military research and civil clause.