The correct answer IMHO is ‘both’, but how much of an impact did they make respective to each other? A spin off of this thread about whether you’d drop the bombs, the impact of the USSR’s declaration of war came up. How much of an impact on Japan’s surrender do you think the dropping of the bombs was, weighed up with the impact of the Soviet declaration of war?
Poll incoming, ‘100 - bombs’ is if you think the bombs did it all, ‘100 - Soviets’ is if you think it was all the USSR and the bombs did nothing. Weighed up just against each other, not counting in any other factors; meaning if we count the combined impact of both on the surrender as the ‘100’, how much of a role do you think the specific factors played in ending the Second World War. Hope that makes sense.
Just spit-balling I’d probably put it at about a 40/60 split between the bombs/Soviets, though I could be tempted possibly as far as 30/70. Whadya reckon?