Supporters rejected dropping the bomb on a deserted island as it would not make Japan surrender. Direct military use was seen as necessary for its effectiveness.
Supporters of using the atomic bomb rejected the idea of dropping one on a deserted island because they thought it would make Japan fight even harder. Dropping the bomb on an uninhabited island was considered ineffective in achieving the desired outcome of forcing Japanese surrender. The supporters believed that the bomb needed to be used directly on Japanese targets to demonstrate its devastating power.
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