If Japan’s leaders were going to surrender because of Hiroshima and Nagasaki, you would expect to find that they cared about the bombing of cities in general, that the city attacks put pressure on them to surrender. But this doesn’t appear to be so. Two days after the bombing of Tokyo, retired Foreign Minister Shidehara Kijuro expressed a sentiment that was apparently widely held among Japanese high-ranking officials at the time. Shidehara opined that “the people would gradually get used to being bombed daily. In time their unity and resolve would grow stronger.” In a letter to a friend he said it was important for citizens to endure the suffering because “even if hundreds of thousands of noncombatants are killed, injured, or starved, even if millions of buildings are destroyed or burned,” additional time was needed for diplomacy. It is worth remembering that Shidehara was a moderate.
Unlike Hiroshima, Nagasaki lies in a series of narrow valleys bordered by mountains in the east and west. The bomb exploded about 500 m. (1,625 ft.) above the ground and directly beneath it (the hypocentre) was a suburb of schools, factories, and private houses. The radius of destruction for reinforced concrete buildings was 750 m. (2,437 ft.), greater than at Hiroshima where the blast caused by the bomb was more vertical. But because of the topography, and despite the Nagasaki bomb being more powerful, only about sq. km. ( sq. mi.) of Nagasaki was reduced to ashes compared with 13 sq. km. (5 sq. mi.) of Hiroshima. Of the 51,000 buildings in the city % were completely destroyed or burt, with % escaping any damage.