Why did president kennedy think the alliance for progress would the united states in the cold war?

Kennedy thought that the Alliance for Progress would help the United States during the Cold War because it would allow the US to ensure that communist was not spreading to countries in Latin America. The original goal of this program was to develop a positive economic relationship between the US and different Latin American countries (like Brazil). Along with this, the US outlined the following goals:

1) Financial and economic planning to help these countries prosper.
2) The development of democratic governments in order to go citizens more political power.

These goals would help the Latin American nations to be closely aligned to the values/ structure of the United States government and economy.