"I think the issue is not so much incendiary bombs. I think the issue is: in order to win a war should you kill 100,000 people in one night, by firebombing or any other way? LeMay's answer would be clearly "Yes." "McNamara, do you mean to say that instead of killing 100,000, burning to death 100,000 Japanese civilians in that one night, we should have burned to death a lesser number or none? And then had our soldiers cross the beaches in Tokyo and been slaughtered in the tens of thousands? Is that what you're proposing? Is that moral? Is that wise?" Why was it necessary to drop the nuclear bomb if LeMay was burning up Japan? And he went on from Tokyo to firebomb other cities. 58% of Yokohama. Yokohama is roughly the size of Cleveland. 58% of Cleveland destroyed. Tokyo is roughly the size of New York. 51% percent of New York destroyed. 99% of the equivalent of Chattanooga, which was Toyama. 40% of the equivalent of Los Angeles, which was Nagoya. This was all done before the dropping of the nuclear bomb, which by the way was dropped by LeMay's command."
January 1, 1970
https://en.wikiquote.org/wiki/Bombs