They'd have had one more weapon ready by mid to late August, so you're talking about two to three weeks after Nagasaki; more were expected in September.We had at least one nuke ready to go with Tokyo's name on it.
The will to continue the fight did not exist, which is why we got Kennan's policy of containment rather than a drive on Moscow. We also sat the Chinese Civil War out due to a lack of political will, which combined with MacArthur's blunder (in defiance of Truman's orders) gave us Korea instead.
However, evidence suggests there use had become questionable in the corridors of power, which meant they were unlikely to be used unless truly required.
In terms of Russia, a fair few blunders and political infighting within 1944 and 45 meant we didn't drive to Berlin as we should have done.
It's a good question really, but on the other hand a drop in the bucket of what ifs. The one I've came back to a few times is the Saar Offensive.I do wonder how would history look like if it was Austrian Habsburgs that unified Germany, instead super militaristic and efficient Prussians, after all they were old leaders of German world before Bismarck displaced Austria with his wars.
Unlike Prussians, famed for their efficiency, discipline and organization, old Habsburg Austria was always chaotic thing, 12 plus different languages with incredibly complicated beaurocracy. Wonder how would their version of Germany look like.
Legitimate action there and then by the French forces, supported by Britain, could have stopped the war in its tracks.
One can only commend the good job private satellite companies have done providing all these imaginary of the war, that hopefully will serve as evidence for the war crimes that Putin and his forces have conducted in Ukraine.