The 46th meeting of the Joint Chemical, Biological, Radiological, and Nuclear (CBRN) Defence Capability Development Group (JCBRND-CDG), held in conjunction with the Maritime Operational Environment CBRN Experts Team (MARTOE), was hosted by the Maritime Securitiy Centre of Excellence (MARSEC COE) from March 22 to 26, 2026.

Within the framework of this activity, several sessions were conducted to update NATO CBRN defence doctrines, standardize terminology, and refine operational procedures specifically for the maritime domain. The meeting aimed to further enhance interoperability and cooperation among allied forces in the face of evolving CBRN threats.