The War of the Pyrenees action was fought at a location described as being "in front" of (that is, west of) Saint-Jean-de-Luz near the modern France–Spain border.

He ordered his left wing near Irun and center in the Baztan Valley to attack the French camps behind the Bidasoa.

French army artillery chief Augustin de Lespinasse gave up the outlying fortifications in order to concentrate his strength in the main camp.

By the time Frégeville arrived on the scene, the Spanish attack had lost its momentum.

Bon-Adrien Jeannot de Moncey, later a Marshal of France under Napoleon, was promoted to general of brigade for his distinguished actions during the battle.