This paper contends that Truman’s decision to use atomic bombs was a multifaceted process, influenced by the pressing need to end the war, intelligence evaluations, domestic political considerations, and the exploration of alternative strategies. By dissecting these factors, we can gain a nuanced understanding of the complexities that shaped this pivotal historical decision.
Above is just an example of a potential thesis you could use for the paper. The main point is to describe the reasons Truman dropped the bomb on the cities of Hiroshima and Nagasaki. Try and use as many primary sources as you can as well.