Answer:
Step-by-step explanation:
Few actions in war are morally justifiable. All a commander or political leader can hope to assess is whether a particular course of action is likely to reduce the loss of life. Faced with the Japanese refusal to surrender, President Truman had little choice.
His decision was mainly based on the estimate of half a million Allied casualties likely to be caused by invading the home islands of Japan. There was also the likely death rate from starvation for Allied PoWs and civilians as the war dragged on well into 1946.