On 16 January 1794 Jacques François Dugommier replaced Eustache Charles d'Aoust as commander-in-chief of the Army of the Eastern Pyrenees.

[3] Until Dugommier's accession, the Army of the Eastern Pyrenees had been under the control of arrogant representatives on mission who abused their authority to remarkable degree.

[4] Dugommier enjoyed good relations with the new representatives Édouard Jean Baptiste Milhaud and Pierre Soubrany.

[8] An independent division operated in the Cerdagne farther inland, but its commander Luc Siméon Auguste Dagobert died on 21 May 1794[9] and was replaced by François Amédée Doppet.

[11] The interim commander Jerónimo Girón-Moctezuma, Marquis de las Amarillas fortified Le Boulou in the Tech River valley.

[9] Augereau lured La Unión into pushing 8,000 troops of his left wing forward, which suited Dugommier's strategy.

Dugommier ordered Sauret to watch the Spanish at Collioure while he hurled Pérignon powerful center division into the gap.

[13] Forcing their enemies to flee over the mountains to Spain, the French seized 150 cannons, 1,800 horses and mules and the entire Spanish baggage train while sustaining minimal casualties.

[15] The Committee of Public Safety had ordered that the coastal towns be recaptured and Dugommier had ignored these instructions when he fought at Boulou.

[14] Its garrison under Eugenio Navarro numbered 7,000 men and 91 guns and included the French Royalist Légion de la Reine.

Accordingly, Navarro capitulated to Dugommier on the pledge to allow his 7,000 troops to return to Spain in exchange for releasing the same number of French prisoners.

When Dugommier furiously wrote to La Unión, asking him to reconsider, the Spanish army commander offered to submit the case to the United States of America for arbitration.

Augereau and his division carried out the policy of killing all Spanish soldiers that fell into their hands, while Dugommier was not as keen on explicitly following through on the decree.

[21] In the Battle of San Lorenzo de la Muga on 13 August, Augereau's men killed 80 officers and 1,256 soldiers while taking only 140 prisoners.

[23] The Army of the Western Pyrenees accepted the surrender of 2,000 Spanish soldiers at Fuentarrabía on 1 August and 1,700 more at San Sebastián the next day.

Instead, La Unión wrote to Charles IV that it would be better to treat French prisoners with more kindness than before and the king affirmed the policy.