eastern provinces, the liberation armies headed for Camagüey and then Matanzas, outmaneuvering and deceiving the Spanish Army several times. They defeated Spanish Gen. Arsenio Martínez-Campos y Antón, who had gained victory in the Ten-Year War, and killed his most trusted general at Peralejo. Campos tried the strategy he had used in the Ten Years' War, constructing a broad belt across the island, called the trocha, about 80 km long and 200 m wide. This defense line was to confine rebel activities to the eastern provinces. The belt was developed along a railroad from Jucaro in the south to Morón in the north. Campos built fortifications along this railroad at various points, and at intervals, 12 meters of posts and 400 meters of barbed wire. In addition, booby traps were placed at locations most likely to be attacked. The rebels believed they had to take the war to the western provinces of Matanzas, Havana and Pinar del Rio, which contained the island's government and wealth. The Ten-Year War had failed because it was confined to the eastern provinces. The revolutionaries mounted a cavalry campaign that overcame the trochas and invaded every province. Surrounding all larger cities and well-fortified towns, they arrived at the westernmost tip of the island on January 22, 1896, exactly three months after the invasion near Baraguá. Campos was replaced by Gen. Valeriano Weyler. He reacted to the rebels' successes by introducing terror: periodic executions, mass exile of residents, forced concentration of residents in certain cities or areas, and destruction of farms and crops. Weyler's terror reached its height on October 21, 1896, when he ordered all countryside residents and their livestock to gather within eight days in various fortified areas and towns occupied by his troops. Hundreds of thousands of people had to leave their homes and were subjected to appalling and inhumane conditions in the crowded towns and cities. Using a variety of sources, Tone estimates that 155,000 to 170,000 civilians died, nearly 10% of the population. Around this time, Spain also had to fight a growing Philippines independence movement. These two wars burdened Spain's economy. In 1896, Spain turned down secret United States offers to buy Cuba. Maceo was killed December 7, 1896, in Havana province while returning from the west. The major obstacle to Cuban success was weapons supply. Although weapons and funding were sent by Cuban exiles and supporters in the United States,