Over 4,000 bomber crews died & ships were lost bombing Germany out of the 'war business' from England.
After VE day everyone worked to defeat Japan.
Just prior to the Atomic bombings it was thought that B-29 wouldn't have enough power to get out of the way even in a 'stripped' condition.
They had been droping leaflets on Hiroshima warning the people but the Jap government said it was a lie and the civilians all stayed there.
"Test runs", if you will.
Anyway; Someone found out that the superchargers were set to low (only half way)and the rest is history.
JM...