And even before that, burned > 500 square miles of Japanese urban areas to ash. Granted, by the last weeks of the war, the USAAF was dropping leaflets warning

And even before that, burned > 500 square miles of Japanese urban areas to ash. Granted, by the last weeks of the war, the USAAF was dropping leaflets warning they'd be back with incendiaries in a few days, a masterstroke in psychological warfare.