Answer:
While there are many important moments in the history of the political situation in Argentina from the 1940's to the 1980's, I'll try to explain the more important parts.
Step-by-step explanation:
Argentina and Chile refused to breakup with Japan and Germany in terms of diplomatic relations after Pearl Harbor. There was a protest against the government for electoral fraud, halted by the nationalist army officers at. In 1945, Argentina decided to declare war against Japan and Germany, which kicks off the Peron era. Juan Peron won the presidential election, his wife Eva was in charge of labor relations. He promised higher pay and social security. With the loss of his wife, his support began to decline, despite that he was re-elected. In the year of 1955 the military uprisings scared the president of Argentina, and drove him into resignation as well as exile. General Juan Carlos Ongania took control of the civilian government which he himself saw as weak and unstable. Peron became president again when the Peronist party won the election of March 1973. He passed away in July of 1974, succeeded by his third wife Isabel. Terrorism took place, running rampant in Argentina, taking hundreds of lives, and creating plentiful protests, and bringing inflation into the equation. The, "Dirty War" took place, and thousands of lives were both taken as well as lost.