Columbia subject headings:
Iraq War, 2003-2011.
September 11 Terrorist Attacks, 2001.
War (International law)
War on Terrorism, 2001-2009.
Harvard subject headings:
Iraq War, 2003-2011--Law and legislation.
Terrorism--Prevention--Law and legislation
War (International law)
War on Terrorism, 2001-2009
Princeton subject headings:
Iraq War, 2003-2011.
War (International law)
War on Terrorism, 2001-2009.