Arturo Frondizi's Presidency (1958/62) was developed in a period that agrees with a stress cycle of the Cold War in the world and its entering in Latin America and the Caribbean Although one was a management studying details concerning foreign strategy', the truth ended up showing that tar from the pacific coexistence waited, they have to live together confronting a strong turbulence among the superpowers, Thus, to the internal balances weakness of this democratic government transition had to be added the contextual factor that produced the Cuban Revolution and its evolution in the Region until the Cuban 's expulsion from the 0,EA. Year 1961 brought great expectations through Kennedy's Government, in whole America before the "Alliance for the Progress" hut also an unusual spiral of events around the Cuban case that were done through transactions of limits between domestic political system and the international atmosphere of each state. The "desarrollistas" showed their independence of criterion in their external Policy hut they had to do special requests to it with relation to the institutional continuity.