Columbia subject headings:
National security--Arab countries.
Shīʻah--Controversial literature.
Terrorism--Arab countries--History.
Terrorism--Religious aspects--Islam.
Harvard subject headings:
Militia movements--Economic aspects--Arab countries.
National security--Arab countries
Political violence--Economic aspects--Arab countries.
Political violence--Religious aspects--Islam
Shiites--Political activity--Arab countries.
Shīʻah--Controversial literature
Terrorism--Arab countries--History.
Princeton subject headings:
National security--Arab countries.
Shīʻah--Controversial literature.
Terrorism--Arab countries--History.
Terrorism--Religious aspects--Islam.