ABSTRACT: From the nineteenth century, with the formation of the national states in Latin America, have promoted an integrationist projects unfinished. Nowadays, the need of the integration is highlighted between countries in different aspects: economic, political, military man, diplomat. The first intention is to analyze historically the projects of integration in Latin America, and to give a look to the concept “Pan Americanism”, which arose in 1890 after the International American Conference: examining the “Pan Americanism” as concept and as politics that was closely linked to the emergence of The United States as world power, and the “Pan Americanism”, from the Latin-American position, understood as the effort on the part of the North A...