Columbia subject headings:
Boko Haram.
Insurgency--Nigeria.
Nigeria--Foreign relations--United States.
Nigeria--Politics and government--2007-
United States--Foreign relations--Nigeria.
Harvard subject headings:
Princeton subject headings:
Boko Haram.
Insurgency--Nigeria.
Nigeria--Foreign relations--United States.
Nigeria--Politics and government--2007-
United States--Foreign relations--Nigeria.