Capture of Fort Bute

The Capture of Fort Bute signalled the opening of Spanish intervention in the American Revolutionary War on the side of France and the United States. Mustering an ad hoc army of Spanish regulars, Acadian militia, and native levies under Gilbert Antoine de St. Maxent, Bernardo de Gálvez, the Governor of Spanish Louisiana stormed and captured the small British frontier post on Bayou Manchac on September 7, 1779.BackgroundSpain officially entered the American Revolutionary War on May 8, 1779, with a formal declaration of war by King Charles III. This declaration was followed by another on July 8 that authorized his colonial subjects to engage in hostilities against the British. When Bernardo de Gálvez, the colonial Governor of Spanish Louisiana received word of this on July 21, he immediately began to secretly plan offensive operations. Gálvez, who had been planning for the possibility of war since April, intercepted communications from the British at Pensacola indicating that the British were planning a surprise attack on New Orleans; he decided to launch his own attack first. To that end, he concealed from the public his receipt of the second proclamation.