Conflict: War of the Fifth Coalition (1809)
Combatants: Austrians vs. French
Location: Germany
Outcome: French victory
With France distracted by its campaign in Spain, Austria once more declared war and, under the command of Archduke Charles Louis, advanced on the French III Corps in Bavaria. Napoleon collected half of his forces to oppose the advance near Abensberg and pushed all three wings of the Austrian army back.
Points of Interest:
Charles Louis managed to blunt Napoleon's offensive at Aspern-Essling a month later, but was badly defeated again by the French in July. He retired from military service shortly after.
Austria agreed to sign the Treaty of Schönbrunn in October of 1809 which ceded 32,000 square miles of territory to the French Empire.
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Sources:
Dupuy, Trevor N., Johnson, Curt, & Bongard, David L. (1992). The Harper's Encyclopedia of Military Biography. New York: Castle Books (HarperCollins).
Dupuy, R. Ernest & Dupuy, Trevor N. (1993). The Harper's Encyclopedia of Military History. New York: HarperCollins.
Eggenberger, David (1985). An Encyclopedia of Battles: Accounts of Over 1,560 Battles from 1479 B.C. to the Present. New York: Dover Publications, Inc.
Haythornthwaite, Philip J. (1990). The Napoleonic Source Book. New York: Facts on File.