Peace Corps – Kennedy proposed Peace Corps, an army of idealistic and mostly youthful volunteers who would bring American skills to underdeveloped countries. He summoned citizens to “ask not what your country can do for you: ask what you can do for your country.”
Bay of Pigs – Kennedy was told that there were enough people in Cuba that would support an uprising, so he sent American-trained Cuban exiles to the Bay of Pigs. When no one was there to support the raid, Kennedy withdrew air support. Therefore, Castro was able to defeat the uprising. This was Kennedy's largest failure in his foreign policy.