Gómez was controversial in his calls to burn sugar plantations to harass the Spanish occupiers. After the American admiral Henry Reeve was killed in 1876, Gómez ended his campaign. By that year, the Spanish government had deployed more than 250,000 troops to Cuba, as the end of the Third Carlist War had freed up Spanish soldiers for the suppression of the revolt. On 10 February 1878, General Arsenio Martínez Campos negotiated the Pact of Zanjón with the Cuban rebels, and the rebel general Antonio Maceo's surrender on 28 May ended the war. Spain sustained 200,000 casualties, mostly from disease; the rebels sustained 100,000–150,000 dead and the island sustained over $300 million in property damage. The Pact of Zanjón promised the manumission of all slaves who had fought for Spain during the war, and slavery was legally abolished in 1880. However, dissatisfaction with the peace treaty led to the Little War of 1879–80.