Columbia subject headings:
Maritime terrorism--European Union countries--Prevention.
Maritime terrorism--Germany--Prevention.
Maritime terrorism--Prevention--International cooperation.
Piracy--European Union countries--Prevention.
Piracy--Germany--Prevention.
Piracy--Prevention--International cooperation.
Harvard subject headings:
Maritime terrorism--European Union countries--Prevention.
Maritime terrorism--Germany--Prevention.
Maritime terrorism--Prevention--International cooperation.
Piracy--Europe--Prevention.
Piracy--Europe.
Piracy--European Union countries--Prevention.
Piracy--Germany--Prevention.
Piracy--Prevention--International cooperation.
Princeton subject headings: