Home2021 Treaties and Agreements ...Croatia (21-105) – Agreement Concerning Security Measures for the Protection of Classified Information hide Croatia (21-105) – Agreement Concerning Security Measures for the Protection of Classified Information TIAS Office of Treaty Affairs January 5, 2021 Defense: Security of Information Signed at Zagreb January 5, 2021; entered into force January 5, 2021. Download Agreement [640 KB] Tags Croatia Defense Treaties