The Battle of Olszynka Grochowska was fought on 25 February 1831 east of Warsaw1, during the November Uprising, between the Polish army and the larger Russian army of Field Marshal Diebitsch. The fiercest fighting raged for an alder wood, the olszynka, which changed hands several times. The battle was indecisive: the Poles withdrew into Warsaw, but the Russians, badly mauled, did not attack the city.
In November 1830 Polish officers in Warsaw rose against Russian rule. By February 1831 a great Russian army was marching on the capital. On the plain of Grochów, just across the Vistula from the city, the Polish army made its stand around a small alder wood.

The November Uprising
On 29 November 1830 young Polish officers in Warsaw rose2 against Russian rule over the Kingdom of Poland. In January 1831 the Polish parliament dethroned Tsar Nicholas I as king of Poland2, and Russia sent a large army to crush the revolt.
Diebitsch marches on Warsaw
Field Marshal Hans Karl von Diebitsch advanced on Warsaw with a much larger army. The Polish army, nominally commanded by Prince Michał Radziwiłł but directed in practice3 by the experienced General Józef Chłopicki, fell back to defend the approaches to the capital at Grochów.

The alder wood
The key to the Polish position was a small alder wood, the olszynka. Through the day on 25 February Russian columns attacked it again and again, and Polish infantry recaptured it with the bayonet. The wood changed hands several times4, and Chłopicki was badly wounded during the fighting.

The Polish withdrawal
Late in the day a massed Russian cavalry attack was repulsed1, but without Chłopicki the Polish command faltered. In the evening the Polish army withdrew in good order across the Vistula into Warsaw. Diebitsch, whose army had suffered heavy losses, did not try to storm the city.

Why the battle mattered
Olszynka Grochowska was the largest battle of the November Uprising.2 It saved Warsaw for the time being and allowed the uprising to continue for months, until the Russians took the city in September 18312. It remains a symbol of the courage of the Polish army of 1831.
