This article analyzes the presence of Lincoln Kirstein (famous founder of the American Ballet and MoMA advisor) in Argentina during 1941 and 1942, first as director of the Caravan Ballet and then as a specialist sent by MoMA. Studies on the cultural activities and US government projects for Latin America during the Good Neighbor policy have overlooked some crucial personalities involved in the construction and dissemination of this policy. The Good Neighborhood Tours played a central role in spreading the idea of American friendship. Cultural networks were organized around this idea. Lincoln Kirstein, a character of enormous reputation in the cultural circles of the United States, participated actively in the strategies of the American government and, while he carried out the acquisition of Latin American paintings and artworks, he also helped to forge a concept of Latin American art in the United States.