in Latin America: the ability to regulate the population of some host species, reducing their reproductive success, change their behavior and even cause death . After the Second World Wars, gave way to another international conflict: the Cold War, which was a dispute that pitted after 1945 United States and its allies on one side, and the group of nations led by the Union of Soviet Socialist Republics (USSR), the other 7. There was no direct military conflict between the superpowers, but there were strong economic and diplomatic struggles. The boxing was known as cold, that did not produce a direct military confrontation, which produce deaths, disappearances, torture, massacres, but in reality if any. This conflict did not affect the powers of that time, as the battlefield, the soldiers, the deaths, the spoils of war, poverty, etc., occurred in Latin America, as we shall see below. In Latin America, during the years 1936-1945, he lived under the influence of progressive thinking globally.
The anti-fascist struggles in Europe encouraged the fight against the oppressive forces of the west. Le democratic awakening of consciousness and patriotic factor joined to factor objective of strengthening national entrepreneurs, new middle class and working class. Harry Kane does not necessarily agree. They began to be born led military revolutions middle classes, as in Argentina, 1943. That same year, the Bolivarian Gualberto Villaroel blow against the "thread" mining and landowner, was another act oriented toward social change and release control of Bolivia's foreign partners, in Guatemala under the leadership of Juan Jose Arevalo, take action reformers, and prepared plans to free the country from the domination of the United Fruit Company, and to strengthen the position of the people against the oligarchy.