[141][142][143] In 1948 Truman defended his decision to use atomic bombs:

As President of the United States, I had the fateful responsibility of deciding whether or not to use this weapon for the first time. It was the hardest decision I ever had to make. But the President cannot duck hard problems—he cannot pass the buck. I made the decision after discussions with the ablest men in our Government, and after long and prayerful consideration. I decided that the bomb should be used to end the war quickly and save countless lives—Japanese as well as American.[144]
Truman continued to strongly defend himself in his memoirs in 1955–1956, stating many lives could have been lost had the United States invaded mainland Japan without the atomic bombs. In 1963, he stood by his decision, telling a journalist "it was done to save 125,000 youngsters on the U.S. side and 125,000 on the Japanese side from getting killed and that is what it did. It probably also saved a half million youngsters on both sides from being maimed for life.