On 30 March 2015 the 40th anniversary of the entry into force of the Biological and Toxin Weapons Convention (BTWC) was celebrated in the Council Chamber at the United Nations in Geneva, the same room inwhich the treaty had been negotiated.
In the morning the formal commemoration took place. About 100 people attended the celebration. Below are some impressions of that session (Please click for full-size images).
The full programme and texts of remarks are available from the website of the BTWC Implementation Support Unit.