Question

If you were President Truman: Would you have dropped the bombs on Hiroshima and Nagasaki?

Answer 1

Short answer: No — I would not have authorized atomic bombs as they were used on Hiroshima and Nagasaki. I would have pursued options intended to end the war quickly while minimizing civilian deaths, and only if those failed would I have considered limited military uses of the weapon.

Why — the reasoning I would use as President Truman

1. The moral constraint
- Intentionally annihilating cities full of civilians raises profound moral problems. As commander-in-chief I would see a duty to end the war but also to limit harm to noncombatants where practical.

2. The military and political context as it was in July–August 1945
- Japan was shocked and battered, but its government had not yet accepted unconditional surrender.
- The U.S. was planning Operation Downfall (invasion), which likely would have produced very large Allied and Japanese casualties.
- The Soviet Union was preparing to enter the war against Japan on 8 August, and Soviet entry would be a powerful pressure on Japan.
- Estimates of casualties from invasion varied widely and were highly uncertain; some U.S. planners predicted huge losses, others smaller numbers.

3. What I would try first
- Public demonstration: I would try a visible, unmistakable demonstration of the new weapon over an uninhabited area (with Japanese observers if feasible), coupled with an immediate, clearly worded ultimatum and a firm offer on one key issue that mattered to the Japanese leadership — preservation of the Emperor’s position in some form — if that would bring about surrender. The goal would be to produce the shock needed to end the war without mass civilian deaths.
- Explicit diplomatic pressure: Coordinate with the British and make clear the terms; coordinate timing with the Soviet declaration of war to maximize pressure on Japan. Use a renewed, specific declaration of surrender terms that addresses Japanese concerns (e.g., about the imperial institution) while protecting Allied aims.
- Targeting policy if use became unavoidable: If a decision to use the bomb could not be avoided, I would have ordered use only against clearly military/industrial targets (not explicitly civilian population centers), and only after warning and after exhausting feasible nonlethal options.

4. Why not the historical course
- Hiroshima and Nagasaki were chosen as cities where the weapon’s effect would be dramatic; that tactic maximized civilian casualties. I believe there were morally and politically preferable alternatives that had a reasonable chance to succeed (demonstration, Soviet entry, negotiated assurance on the Emperor’s status), and those should have been tried first.
- The historical decision also carried geopolitical effects (limiting Soviet postwar influence) which complicated the motive; as President my priority would be ending the war and minimizing suffering rather than shaping postwar spheres of influence at the cost of civilian lives.

5. A candid acknowledgement of uncertainty
- It is possible — not provable — that a demonstration or diplomatic pressure would have failed and that an invasion would have cost many more lives, Allied and Japanese. The decision Truman faced was made under severe time pressure and with imperfect intelligence; a different choice might have prolonged fighting and increased casualties. Any stance involves risk and moral trade-offs.

Bottom line
- I would have refused to authorize nuclear attacks aimed at largely civilian population centers. I would have tried a clear, public demonstration plus concerted diplomatic pressure (including exploiting Soviet entry and making concessions on the Emperor where necessary to secure surrender). If those failed and other options were exhausted, I would have considered limited military use against bona fide military-industrial targets rather than wholesale city destruction.