The 1925 Geneva Protocol: The League of Nations’ Only Arms Control Agreement
Historical Notes #6 (July 2025), 107pp. The origins of the Geneva Protocol and the history of its negotiation 100 years ago, including an analysis of why Poland insisted on inserting bacteriological weapons in the document. For download. On Wednesday, 17 June 1925, the Conference for the Supervision of the International Traffic in Arms successfully concluded six weeks of negotiations with three agreements. One of them was the Protocol for the Prohibition of the Use in War of Asphyxiating, Poisonous or Other Gases, and of Bacteriological Methods of Warfare. Of the forty-four participating delegations, twenty-six possessed plenipotentiary power to sign the …
Reflections of a negotiator on the BTWC Ad Hoc Group
Introduction to Historical Notes, Issue #3 The third issue of the Historical Notes series was prepared by Dr Robert (Bob) J. Mathews. From 1984 until 2017, he served as Scientific Adviser to Australian delegations during the negotiation and implementation of the Chemical Weapons Convention (CWC) and efforts to strengthen the Biological and Toxin Weapons Convention (BTWC). In this third issue of Historical Notes, he reviews the efforts undertaken by the states parties to the BTWC to equip the convention with verification tools and set up an international organisation to oversee its implementation. As soon as the treaty negotiations came to …
Catapulting Cadavers: A Medieval Practice of Biological Warfare?
Introduction to Historical Notes, Issue #2 The Mongol siege of Caffa in 1346 is closely associated with the spread of the plague epidemic to continental Europe and northern Africa. A major Genoese trading post in the Crimea, its citizens escaped via the Black Sea and the Bosporus, eventually bringing the Black Death to Mediterranean ports from where it spread inland or onward to coastal cities in west and north Europe, eventually reaching even Iceland. Bad as the medieval pandemic was, its transfer to the Mediterranean basin some authors have attributed to an act of warfare: the catapulting of plague-ridden corpses …
de Mussi and the Siege of Caffa: Origin of a Biological Warfare Allegation
The plague pandemic that hit central and western Asia, the Mediterranean societies and western and northern Europe in the middle of the 14th century features in all present-day historical narratives of chemical and biological warfare. To many writers those events underscore the potential of massive destruction in terms of both human and economic losses to societies. They also tend to ascribe the pandemic’s origin to a specific deed, namely the catapulting of diseased bodies into the Crimean town of Caffa by Mongol besiegers in 1346. Fleeing citizens carried what became known as the ‘Black Death’ to Mediterranean ports from where …
Before the 1925 Geneva Protocol: First (mis)steps to constraining chemical weapons
17 June is the anniversary of the signing in 1925 of the Protocol for the Prohibition of the Use in War of Asphyxiating, Poisonous or other Gases, and of Bacteriological Methods of Warfare, more commonly known as the Geneva Protocol after the place where it was negotiated. In a blog posting six years ago, I discussed how the negotiators of the Geneva Protocol stumbled across the dual-use dilemma when trying to control toxic chemicals so that belligerents would not be able to use them again as weapons of war. However, in the absence of a formal international treaty outlawing the …
The Geneva Protocol at 90, Part 1: Discovery of the dual-use dilemma
Today, 17 June, the Protocol for the Prohibition of the Use in War of Asphyxiating, Poisonous or other Gases, and of Bacteriological Methods of Warfare celebrates its 90th anniversary. Short as the document is, it laid the foundations for the 1972 Biological and Toxin Weapons Convention (BTWC) and the 1993 Chemical Weapons Convention (CWC). How critical that document was to disarmament—the total elimination of a given weapon category—the global community can only appreciate through the growing frustration with the lack of progress in the elimination of nuclear weapons. As the negotiators of the Geneva Protocol came to understand in 1925, …