 The Spanish Valeriano Weyler, as Governor General, initiated the Reconcentration Policy, which became like a precursor to the Nazi extermination camps, operated to isolate the rebels from the people and causing devastation in the population.But in spite of the strength and the armament of the Spanish army, the tactics of the Cubans always prevailed and with the invasion from east to west, the process was accelerated that would give them complete independence.But in 1898, the American battleship, USS "Maine", was sunk under strange circumstances in the Havana Harbor.