The United States declined to recognize the new Cuban government, although many European and Latin American nations did so. In 1878, the Pact of Zanjón ended the conflict, with Spain promising greater autonomy to Cuba. Spain sustained 200,000 casualties, mostly from disease; the rebels sustained 100,000–150,000 dead. In 1879–80, Cuban patriot Calixto García attempted to start another war known as the Little War but failed to receive enough support. Slavery in Cuba was abolished in 1875 but the process was completed only in 1886.