Video Presentation Apr 21, 2015 01:11:42 A Century of Chemical Warfare: Building a World Free of Chemical Weapons Paul Walker Green Cross International Location Harnackhaus, Berlin Copyrights © Max Planck Institute for the History of Science, 2015, CC-BY 3.0 Go to the website “Internationale Konferenz und Gedenkveranstaltung — 100 Jahre Giftgaskrieg”