Background
Brunswick meanwhile had passed the northern defiles and had then swung round to cut off Dumouriez from Châlons. At the moment when the Prussian manoeuvre was nearly completed, Kellermann, commanding in Dumouriez's momentary absence, advanced his left wing and took up a position between Sainte-Menehould and the mill of Valmy. The result was the Cannonade of Valmy. Kellermann's 47,000 infantry, nearly all regulars, stood steady. The French artillery justified its reputation as the best in Europe, and eventually, with no more than a half-hearted infantry attack, Brunswick's 35,000 strong broke off the action and retired. The French suffered 300 casualties and their opponents 184.

Aftermath

The Fifteen Decisive Battles of the World