Final answer:
Kennedy aimed to create peace and prosperity by promoting economic development, social stability, and democracy through the Alliance for Progress, Peace Corps, and foreign aid, alongside civil rights initiatives and the space race.
Step-by-step explanation:
President John F. Kennedy believed that making the world a more peaceful and prosperous place required addressing the economic disparities and political instability that could lead nations towards communism. He launched the Alliance for Progress to promote economic and social stability in Latin America and established the Peace Corps to send idealistic young Americans to undertake humanitarian projects worldwide. Additionally, he championed the Agency for International Development to manage foreign aid and initiated various projects to support democracy and contain communism, including increasing military preparedness, promoting civil rights, and advancing technology in the space race.