Brière de l’Isle responded immediately, transporting nearly 3,000 French soldiers to the Luc Nam valley aboard a flotilla of gunboats and attacking the Chinese detachments before they could concentrate.
Brière de l’Isle responded immediately, despatching General de Négrier to the Luc Nam valley with nearly 3,000 French soldiers aboard a flotilla of gunboats. De Négrier's mission was to attack and destroy the Chinese detachments before they could concentrate.