||Isleños fought against the British during the American Revolution
through their service in the Galvez Expedition. Militiamen from the four
Isleño settlements, including San Bernardo, participated in the
three major military campaigns (Baton Rouge, Mobile and Pensacola) of the
expedition, which resulted in the expulsion of the British presence from
what is now the United States Gulf Coast.
The male inhabitants of Terre-aux-Boeufs and the river area, including
Plaquemines, were organized into the Volunteers of the Mississippi during
the 1780's. This regiment of militia remained intact and was incorporated
in the state militia after 1803 as the Third Regiment of Louisiana Militia.
In September of 1814, news of a possible British invasion began to circulate
along Bayou Terre-aux-Boeufs, and arouse concerns among the Canarian farmers.
The Isleños were organized into three of the regiment's companies.
The Third Regiment was called to active service on December 16, 1814
to help defend against the British invasion. They had very few weapons,
relying on their shotguns as their primary weapons. Many did not own shotguns,
and some served unarmed. Their officers furnished a small number of weapons,
but the government supplied none. The Isleños fought in the night
battle of December 23, 1814 and sustained the worst property losses and
hardships resulting from the British invasion of Louisiana.