Columbia subject headings:
Napoleon I, Emperor of the French, 1769-1821.
Napoleonic Wars, 1800-1815.
Harvard subject headings:
Continental System (Economic blockade)
East Frisian Islands (Germany)--History.
Napoleonic Wars, 1800-1815--Blockades
North Sea Coast (Germany)--History.
Oldenburg (Germany)--History.
Smuggling--Germany--East Frisian Islands--History.
Smuggling--Germany--North Sea Coast--History.
Smuggling--Germany--Oldenburg--History.
Princeton subject headings:
Napoleon I, Emperor of the French, 1769-1821.
Napoleonic Wars, 1800-1815.