On July 3, 1898, the same day as the naval battle, Major General William "Pecos Bill" Shafter began the siege of Santiago. Shafter fortified his position on San Juan Heights. General Henry W. Lawton's division moved up from El Caney extending the U.S. right flank to the north. To the northwest, Cuban rebels under the command of Calixto Garcia extended the U.S. line to the bay. General Arsenio Linares had been severely wounded at the Battle of San Juan Hill and was replaced by General José Toral y Velázquez. Toral had a good defensive position and Shafter knew he would sustain severe casualties from a frontal assault. All Spanish ships were destroyed bringing forth the reason for surrender.