The Convention, which banned the production, stockpiling, and use of chemical weapons, represented one of the most sweeping arms-control achievements of the post-Cold War era, eventually leading to the destruction of tens of thousands of tonnes of declared chemical agents worldwide under international verification.
The Chemical Weapons Convention had been opened for signature in 1993, but the machinery to enforce it—the Organisation for the Prohibition of Chemical Weapons in The Hague—required painstaking preparatory work throughout the mid-1990s before the treaty could take legal effect in April 1997.
Late November 1996 saw diplomats and technical experts finalizing verification protocols, inspection procedures, and destruction timelines that would allow inspectors unprecedented access to military and industrial chemical facilities across dozens of countries.
The treaty's eventual impact proved historic: it led to the verified destruction of over 90 percent of the world's declared chemical weapons stockpiles in the decades that followed, and the OPCW itself won the Nobel Peace Prize in 2013 for its work overseeing the elimination of Syria's chemical arsenal amid that country's civil war.