Battle of Dybbøl
Promoted to "General der Kavallerie", the Prince took part in the Second Schleswig War of 1864 against Denmark, where he held command over the Prussian troops in the Austro-Prussian expeditionary force and defeated the Danes at the Battle of Dybbøl. In May 1864, he became supreme commander of the Austro-Prussian allied army and conquered Jutland.