Fort New Richmond (present-day Baton Rouge, Louisiana) was the second British outpost to fall to Spanish arms during Bernardo de Gálvez's march into West Florida.

[2] When Colonel Bernardo de Gálvez, the colonial Governor of Spanish Louisiana received word of this on July 21, he immediately began to plan offensive operations to take West Florida.

[3] On August 27, Gálvez set out by land toward Fort Bute, leading a force that consisted of 520 regulars, of whom about two-thirds were recent recruits, 60 militiamen, 80 free blacks and mulattoes, and ten American volunteers headed by Oliver Pollock.

[6] When Gálvez arrived at Baton Rouge on September 12, he found a well-fortified town garrisoned by over 400 regular army troops and 150 militia under the overall command of Lieutenant Colonel Alexander Dickson.

Before the fort he was unable to directly advance his own artillery, so Gálvez ordered a feint to the north through a wooded area, sending a detachment of his poorly trained militia to create disturbances in the forest.

The British turned and unleashed massed volleys at this body, but the Spanish forces, shielded by substantial foliage, suffered some casualties.

[15] Baton Rouge remained in Spanish hands for the rest of the war, and Britain ceded both West and East Florida to Spain in the 1783 Treaty of Paris.