LeMay commanded subsequent B-29 Superfortress combat operations against Japan, including massive incendiary attacks on 67 Japanese cities and the atomic bombings of Hiroshima and Nagasaki. This included the firebombing of Tokyo known in official documents as the "Operation Meetinghouse" air raid on the night of March 9–10, 1945 which proved to be the single most destructive bombing raid of the war. For this first attack, LeMay ordered the defensive guns removed from 325 B-29s, loaded each plane with Model M-47 incendiary clusters, magnesium bombs, white phosphorus bombs, and napalm, and ordered the bombers to fly in streams at over Tokyo. LeMay described Operation Meetinghouse by saying "the US had finally stopped swatting at flies and gone after the manure pile".