A force under Major Israel Fearing drove off the British, both at the fort and when they attempted an attack on the town the next day.

[6] In the War of 1812, HMS Nimrod bombarded the fort on 13 June 1814 when the local militia refused to surrender some guns.

Donated to the Town of Fairhaven by the New Bedford Whaling Museum, the barrels of the guns are thought to date to the War of 1812, but they have no direct connection to Fort Phoenix.

[6] During World War II an Anti-Motor Torpedo Boat (AMTB) battery of four towed 37 mm guns was at the fort.

[6] Today, historical encampments are staged at Fort Phoenix in the spring and fall by a local reenacting group, the Fairhaven Village Militia.