Final answer:
Truman hoped to gain economic and political unity among European nations, demonstrate U.S. capabilities to the Soviet Union, and improve living conditions in Europe.
Step-by-step explanation:
Truman hoped to gain several things through the Marshall Plan (MP). First, he sought to promote economic and political unity among European nations by offering them aid. This was aimed at undercutting the popularity of French and Italian Communists and discouraging moderates from leaning towards communism. Second, Truman wanted to demonstrate to the Soviet Union the technological and economic capabilities of the United States. Finally, the humanitarian aspect of the plan aimed to improve living conditions in Europe and prevent the spread of communism.