Battle of Heilsberg
Summary
The Battle of Heilsberg opposed French forces to Russians solidly entrenched on heights behind the Alle River. The poorly coordinated French attack met fierce defense. Casualties were heavy on both sides, and the French failed to break through.
Historical context
After months of maneuver without decisive engagement since Eylau, Napoleon sought to bring the Russians to battle. He ordered Murat, Lannes, and Soult to attack Russian positions at Heilsberg. Bennigsen had time to fortify his lines.
Tactics
Soult and Lannes attacked frontally under heavy artillery fire. Murat attempted a cavalry charge to break the Russian center but failed. The Russians used redoubts, trenches, and the river as natural obstacles.
Consequences
French casualties were high without notable territorial gain. This battle pushed Napoleon to change strategy: rather than attack solid entrenchments, he sought to catch the Russians on the move. Four days later he surprised them at Friedland.