In July 1704 combined forces from the United Kingdom and the Dutch Republic led by Sir George Rooke, captured Gibraltar during the War of the Spanish Succession. The Spanish attempted to recapture The Rock in October 1704 during its Twelfth Siege. A force of five hundred volunteers led by Spanish Gibraltar-born goatherd Simón Susarte managed to scale Charles V's Wall, and massacred the guard at Middle Hill, but were attacked by a party of grenadiers and were all either killed or captured.