The next decade was marked by several rebellions against the new political order, including naval revolts (1891, 1893–94), the Federalist Rebellion (1893–95), the War of Canudos (1896–97), and the Vaccine Revolt (1904), during which the quality of the Brazilian Navy severely declined relative to its neighbors thanks to an Argentine–Chilean naval arms race. By the turn of the twentieth century, an antiquated Brazilian naval fleet with just forty-five percent of its authorized personnel (in 1896) and only two modern armored warships could be faced by Argentine and Chilean navies filled with ships ordered in the last decade.