After the war, Brière de l'Isle was named Governor of Sénégal from 1876 to 1881.
He took an important role in the French conquest of Senegal.

Kanya-Forstner describes him as "an authoritarian ruler who angered French commercial interests and turned the colony into a quasi-military dictatorship".
Finding the colony in dire financial straits, he increased taxes on imported cloth from other countries, which went some way to placating the large French commercial houses while alienating local interests in Saint-Louis and Dakar.
Militarily, the Senegal colony had recently faced both uprisings in the Wolof states which now make up the coastal heart of Senegal, and powerful states in the interior.
 The Minister of the Navy issued orders to Governor Brière de l'Isle that no new territory was to be annexed.
Despite this he began a series of expansions through protectorates and direct military control, unprecedented since the highpoint of expansion under the governorship of Louis Faidherbe (1854–1865).
Brière de l'Isle oversaw the conquest of French territory in West Africa which would be formalised at the Berlin conference of 1884, beginning the so-called "Scramble for Africa".
After the war, Brière de l'Isle was named Governor of Sénégal from 1876 to 1881. He took an important role in the French conquest of Senegal.
Kanya-Forstner describes him as "an authoritarian ruler who angered French commercial interests and turned the colony into a quasi-military dictatorship". Finding the colony in dire financial straits, he increased taxes on imported cloth from other countries, which went some way to placating the large French commercial houses while alienating local interests in Saint-Louis and Dakar. Militarily, the Senegal colony had recently faced both uprisings in the Wolof states which now make up the coastal heart of Senegal, and powerful states in the interior.  The Minister of the Navy issued orders to Governor Brière de l'Isle that no new territory was to be annexed. Despite this he began a series of expansions through protectorates and direct military control, unprecedented since the highpoint of expansion under the governorship of Louis Faidherbe (1854–1865). Brière de l'Isle oversaw the conquest of French territory in West Africa which would be formalised at the Berlin conference of 1884, beginning the so-called "Scramble for Africa".
Louis Brière de l'Isle