[pepsionice]

What may have been true was simply the goal to make the bomb (from 1943 on), and that the targets from the 1943 list might have included Germany. If D-Day had gone badly and thousands of Americans captured, then the entire war in 1944 would have stalled. No further attempt to move into Europe would have taken place until at least the summer of 1945, and we would have likely looked upon a entrance into Spain and fight northward. A failed D-day would have been a major reason to drop a nuke upon Germany, although Berlin would have likely been the last target to use. One would guess that a major airfield would have been the choice in a unpopulated region of the country.

[Axenolith]

If D-Day had gone badly the Soviets might have broken in the summer of 45'. It was beginning to get tough to keep up the enormous numbers of men as cannon fodder and they were starting to feel the pinch at the time of the drive on Berlin in April 1945. As it was they came close to getting stopped at Seelow Heights.

That situation would have been vastly different without Allied armies swarming over western Europe.

The speculative question of the day though would be whether or not the Allies would have risked flying an atomic weapon over an occupied Europe swarming with jet aircraft and operational wire guided anti aircraft missiles in 1945\46...