Columbia subject headings:
Prisoners of war--Congresses.
War--Protection of civilians--Congresses.
War--Relief of sick and wounded--Congresses.
Harvard subject headings:
Prisoners of war--Congresses.
War--Protection of civilians--Congresses.
War--Relief of sick and wounded--Congresses.
Princeton subject headings:
Prisoners of war--Congresses.
War--Protection of civilians--Congresses.
War--Relief of sick and wounded--Congresses.