Columbia subject headings:
IS (Organization)
Iraq--Politics and government--21st century.
Islam and politics--Iraq.
Islamic fundamentalism--Iraq--History.
Jihad.
Qaida (Organization)
Salafīyah--Iraq--History--20th century.
Salafīyah--Iraq--History--21st century.
Harvard subject headings:
IS (Organization)
Iraq--Politics and government--21st century.
Islam and politics--Iraq.
Islamic fundamentalism--Iraq--History.
Jihad
Qaida (Organization)
Salafīyah--Iraq--History--20th century.
Salafīyah--Iraq--History--21st century.
Princeton subject headings:
IS (Organization)
Iraq--Politics and government--21st century.
Islam and politics--Iraq.
Islamic fundamentalism--Iraq--History.
Jihad.
Qaida (Organization)
Salafīyah--Iraq--History--20th century.
Salafīyah--Iraq--History--21st century.