structural:expansion
Michiji Tajima's notes in 1952

According to notebooks by Michiji Tajima, a top Imperial Household Agency official who took office after the war, Emperor Hirohito privately expressed regret about the atrocities that were committed by Japanese troops during the Nanjing Massacre. In addition to feeling remorseful about his own role in the war, he "fell short by allowing radical elements of the military to drive the conduct of the war."