the final operation was at calvi, where two large forts blocked the approaches to the town. substantial british reinforcements had arrived from gibraltar, led by charles stuart, and he and nelson landed an expeditionary force near calvi on 17 june. after british batteries were established on commanding positions, the french forts came under attack. fort mollinochesco was abandoned by 6 july, while fort mozello was stormed and captured on 18 july by forces under john moore. british casualties were significant; nelson lost an eye during the fighting, and more than a thousand british soldiers were reported sick with dysentery and malaria. over several weeks the town was battered into surrender, taking heavy damage and capitulating following extended negotiations on 10 august.