Title: Jアラートとは何か
Subjects: National security, International Security, Nihon-Kokubō, Kokumin hogohō, Kokumin hogo keikaku, Jē arāto, Warnung, Kernwaffe, Katastrophenmanagement, Katastrophenschutz, Krieg, Terrorismus, Sicherheit, Foreign relations, Chōsen Kōgei Kenkyūkai
Places: Japan
People: Krieg