Columbia subject headings:
Great Britain. Army--History--20th century.
Irish Republican Army--History--20th century.
Northern Ireland--History, Military.
Northern Ireland--History--1968-1998.
Harvard subject headings:
Great Britain. Army--History--20th century.
Great Britain. Army--History.
Irish Republican Army--History--20th century.
Irish Republican Army--History.
Military law--Northern Ireland.
Northern Ireland--History--1968-1998.
Princeton subject headings:
Great Britain. Army--History--20th century.
Irish Republican Army--History--20th century.
Northern Ireland--History, Military.
Northern Ireland--History--1968-1998.