The Battle of Puerto Plata Harbor took place in 1800 with France and Spain on one side, and the United States on the other, during the undeclared Quasi-War officially between the French First Republic and the United States.
American forces landed about a hundred troops and sailors from USS Sally in Puerto Plata and boarded the French corvette Sandwich anchored there, which surrendered after a brief firefight. U.S. Marines then assaulted the Spanish Army's Fortaleza San Felipe; after another brief firefight, the fort was overrun and its cannons were spiked.
In early May 1800, Captain Silas Talbot organized a naval expedition to Puerto Plata on the island of Hispaniola. His objective was to harass French shipping. After capturing the small French sloop Sally, USS Constitution arrived at Puerto Plata. A French corvette was seen at anchor in the harbor.
USS Constitution sailed around to a beach, out of the fort's range. There she off-loaded a landing force of about 100 marines and sailors. The landing party then marched on Sandwich while the prize sloop Sally was sent in to attack by way of sea. The French were no doubt shocked at the approaching American force and hardly put up a fight; Sandwich was captured. Then the Americans turned their attention on Fortaleza San Felipe, a Spanish Army fort. After another brief fight, the fort's defenses were overrun and the marines spiked the fort's cannons.
With the capture of Sandwich and the assault on the coastal fort, U.S. forces returned to their ships and sailed home. The Battle of Puerto Plata Harbor was one of the few land battles during the Quasi-War. Detailed casualties of the engagement are unknown.