Second Schleswig War
1864
Prussia and Austria against Denmark over the duchies of Schleswig and Holstein. Denmark's stronger navy blockaded the German coast and won off Jasmund in the Baltic. Austria sent a squadron from the Mediterranean under Wilhelm von Tegetthoff, which fought the Danes off Heligoland in the North Sea.
How the fleets moved
Click a route to see which ships made it, or a battle for its summary. Routes are approximate.
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Danish movement
Prussian movement
Austrian movement
Battle (size: ships engaged)
Routes are approximate.
Battles
In date order.
17 March 1864
Battle of JasmundOff the Jasmund peninsula, Rügen
Danish tactical victory; blockade maintained
5
vs
9
9 May 1864
Battle of HeligolandOff Heligoland, North Sea
Disputed; Danish tactical success, blockade lifted
3
vs
5
Fleets
Each navy's ships in the war, from its biggest down.