Of course dropping the A-bomb *did* have the additional effect of scaring the Russians. It is possible to have multiple desirable outcomes influence a decision.
After all, the Iraq Campaign in the War on Terror was not simply to rid Iraq of WMDs.
Of course dropping the A-bomb *did* have the additional effect of scaring the Russians. It is possible to have multiple desirable outcomes influence a decision. Which, in combination with the American lives dropping them saved versus an invasion, is the reason why the Left abhors us having dropped them.