Columbia subject headings:
Trent Affair, 1861.
Harvard subject headings:
Great Britain--Foreign relations--United States.
Trent Affair, 1861.
United States--Foreign relations--1861-1865.
United States--Foreign relations--Great Britain.
Princeton subject headings:
Great Britain--Foreign relations--United States.
Trent Affair, 1861.
United States--Foreign relations--1861-1865.
United States--Foreign relations--Great Britain.