While LeMay’s 1945 firebombing campaign was certainly excessive—and represented the same base indifference to human life that got Nazis strung up at Nuremberg—it did not end the war. The Japanese were not solely holding out because their military men were fanatical in ways that the Americans weren’t, as Gladwell seems to suggest, citing Conrad Crane, an Army staff historian and hagiographer of LeMay’s[1]; they were holding out because they wanted better terms of surrender—terms they had the prospect of negotiating with the Soviet Union.
The United States, having already developed an atomic weapon—and having made the Soviet Union aware of it—decided to drop it as it became clear the Soviet Union was readying to invade Japan. On August 6, the United States dropped a bomb on Hiroshima. Three days later, and mere hours after the Soviet Union formally declared war on the morning of August 9, the Americans dropped the second atomic bomb on Nagasaki. An estimated 210,000 people were killed, the majority of them on the days of the bombings.
It was the detonation of these bombs that forced the end of the war. The Japanese unconditional surrender to the Americans was announced on August 15 and formalized on the deck of the USS Missouri on September 2. As historians like Martin Sherwin and Tsuyoshi Hasegawa have pointed out, by dropping the bombs, the Truman administration had kept the Communist threat out of Japan. Imperial Japan was staunchly anticommunist, and under American post-war dominion, the country would remain that way. But Gladwell is unequipped to supply the necessary geopolitical context that could meaningfully explain why the American government would force an unconditional surrender when the possibility of negotiation remained totally live.