"Nereus" remained in North Carolina waters until Rear Admiral Porter launched his successful attack against Fort Fisher on 13 January 1865. In the three-day struggle, a classic example of Army—Navy coordination, Union soldiers, sailors, and marines, supported by the deadly effective fire from Porter's warships, overran Wilmington's defenses, closing the vital Confederate seaport. "Nereus" crewman Thomas Kane was awarded the Medal of Honor for gallantry in this action.