Columbia subject headings:
Harvard subject headings:
Belgium--Foreign relations--United States.
United States--Foreign relations--1861-1865.
United States--Foreign relations--Belgium.
United States--History--Civil War, 1861-1865--Participation, Belgian.
Princeton subject headings:
Belgium--Foreign relations--Confederate States of America.
Belgium--Foreign relations--United States.
Confederate States of America--Foreign relations--Belgium.
United States--Foreign relations--Belgium.
United States--History--Civil War, 1861-1865--Belgian troops.