In July 1945 Yamahata was requisitioned for a military journalist and dispatched to a department in
Hakata on 1 August. He took up his new post of the department on 6 August, the day of Hiroshima bombing. On 9 August, 1945 it was reported in Japan that US bombers dropped an atomic bomb on Nagasaki and after it 5 military journalists in the department including Yamahata were commanded to go to Nagasaki to photograph its devastating scenes. On a day after the
Nagasaki bombing, Yamahata reached the outskirt of Nagasaki to begin to photograph the devastation. Over a period of about twelve hours he took around a hundred exposures; by late afternoon, he had taken his final photographs near a
first aid station north of the city. In a single day, he had completed the only extensive photographic record of the immediate aftermath of the
atomic bombing of either
Hiroshima or Nagasaki. == Publication ==