Columbia subject headings:
Security, International.
Terrorism--Prevention--International cooperation.
United Nations.
War on Terrorism, 2001-
Harvard subject headings:
Security, International.
Terrorism--Prevention--International cooperation
United Nations
War on Terrorism, 2001-2009
Princeton subject headings:
Security, International.
Terrorism--Prevention--International cooperation.
United Nations.
War on Terrorism, 2001-2009.