Columbia subject headings:
Paramilitary forces--Northern Ireland--History--20th century.
Ulster Defence Association.
Ulster Volunteer Force.
Harvard subject headings:
Paramilitary forces--Northern Ireland--History--20th century.
Ulster Defence Association.
Ulster Volunteer Force
Princeton subject headings:
Great Britain--Armed Forces--Northern Ireland.
Northern Ireland--History--1968-1998.
Paramilitary forces--Northern Ireland--History--20th century.
Political violence--Northern Ireland--History--20th century.