Admirals Nimitz and King succeed in scuttling the invasion and the Japanese get hit with nuclear bombs until there isn't any town large enough to justify using them. The Soviets take Hokkaido. The nuclear bombardment and starvation caused by the blockade kill two thirds of the Japanese population.
The bomb was already armed and would have exploded when they reached detonation height.
They already had another bomb ready after that (give or take a few days) and bomb production was accelerating rapidly.
What happened to the French? It was their idea in the first place and they had already expanded airbases in Syria and moved additional bombers there. Bombers where also supposed to take off from Syria, Iran, and Turkey, not Iraq IIRC.
Did you give any credence to this: