How did harry truman feel about the droping of atoomic bomb?

Harry Truman, who was President of the United States during World War II, believed that dropping the atomic bomb on Japan was necessary to bring a swift end to the war and save countless lives. He felt that it would prevent a prolonged conflict and a potentially devastating invasion of Japan, which could result in significant American and Japanese casualties. Truman later expressed a sense of moral responsibility for the decision, acknowledging its grave implications while maintaining that it was a necessary action to achieve peace.