Columbia subject headings:
Iraq War, 2003-2011.
Harvard subject headings:
Iraq War, 2003-2011--Causes
Iraq War, 2003-2011--Economic aspects.
United States--Foreign relations--2001-2009.
Princeton subject headings:
Iraq War, 2003-2011--Causes.
Iraq War, 2003-2011--Economic aspects.
United States--Foreign relations--2001-2009.