Battle of the Lizaine

The Battle of the Lizaine pitted General Bourbaki's Army of the East against a German corps commanded by General von Werder. Bourbaki attempted to break the siege of Belfort and drive German forces back on the Lizaine line. Despite numerical superiority, the French failed to pierce the enemy front. Exhausted, starving, and poorly led, Bourbaki's army disintegrated, leading to a dramatic retreat toward Switzerland.

The Army of the East was sent to the far east of France to attempt to relieve besieged Belfort. Bourbaki, inexperienced in commanding an army of this scale, struggled to coordinate his troops in very harsh winter conditions. The adversary, well entrenched on the Lizaine River, profited from an advantageous defensive position.

Bourbaki engaged his troops in several columns on a wide front, with poorly synchronized frontal attacks. The Germans, well equipped and organized, offered strong resistance, notably through their artillery. Attempts to cross the Lizaine failed against crossfire. A German counteroffensive on the French flank on 17 January led to the breaking of lines and panic among French troops.

The defeat precipitated the rout of the Army of the East. Unable to reorganize, Bourbaki began a desperate retreat toward the Jura. More than 80,000 French soldiers would cross the Swiss border on 1 February and be interned. This rout ended all French offensive capacity. Belfort would nevertheless hold until the armistice. The Battle of the Lizaine illustrates poor coordination of republican armies facing Prussian rigor.