In the context of support to NATO, Maritime Security Centre of Excellence (MARSEC COE) SO Cdr.Deniz ÇETİKLİ participated as guest lecturer in the NATO Officer CBRN Defence Policy Course held by NATO School Oberammergau (NSO) on 17-21 April 2023, and delivered a comprehensive lecture on "The Role of CBRN Defense in Maritime Security Operations (MSO)".