This chapter examines volunteers’ first community work experiences, before arriving in Latin America, in poor neighborhoods of cities like New York, Los Angeles, and Washington, D.C., as well as in communities in Mexico and Puerto Rico, where a considerable number of volunteers in the 1960s received training. The chapter dedicates special attention to New Mexico, where the University of New Mexico became a principal training site for volunteers bound for Latin America. The chapter also takes up volunteers’ involvement in community efforts associated with the War on Poverty launched in 1964 by President Lyndon B. Johnson. This preparation in the United States points to the contradictions that sprang from the Peace Corps’ ostensible mission of helping poor countries in the Third World transition to modernity. Countries such as the United States were supposedly modernity incarnate, but revealed themselves as less than completely modern.