"To quell the Japanese resistance man by man and conquer the country yard by yard might well require the loss of a million American lives and half that number of British- or more, if we could get them there: for we were resolved to share the agony. Now all this nightmare picture had vanished. In its place was the vision- fair and bright indeed it seemed- of the end of the whole war in one or two violent shocks... The Japanese people, whose courage I had always admired, might find in the apparition of this almost supernatural weapon an excuse..."
January 1, 1970
https://en.wikiquote.org/wiki/Atomic_bombings_of_Hiroshima_and_Nagasaki