This 10 June 2020 video says about itself:
History of the Peace Movement Part 1: 1815 1949
IPB (International Peace Bureau) presents a two-part webinar series to explore the past two centuries of peace movement activities, including the role of the IPB, which was founded in 1891.
In the first session, speakers Guido Grünewald and David Cortright discuss the peace movement of the 19th century and early 20th century, leading up to the First World War. Special attention will be given to the role of the IPB prior to, during, and upon the conclusion of World War I. The presentation then turns to the interwar period, the Second World War, and the years immediately following the war.
Guido Grünewald, Author & Historian
David Cortright, Director of Policy Studies at the Kroc Institute for International Peace Studies
Moderated by Amela Skiljan, IPB Coordinator
This video is the post-1949 sequel.