Columbia subject headings:
Harvard subject headings:
Congress of Vienna (1814-1815)
Wars of Liberation, 1813-1814--Participation, British.
Wars of Liberation, 1813-1814--Participation, Portuguese.
Princeton subject headings:
Great Britain--History, Military--1789-1820.
Great Britain. Army--History--19th century.
Napoleonic Wars, 1800-1815--Campaigns.
Peninsular War, 1807-1814--Campaigns--Portugal.
Portugal--History, Military--19th century.
Portugal. Exército--History--19th century.