War is a Monster. I read, once upon a time, the people of Hiroshima, and Nagasaki were told by word of mouth and radio (those left alive), and the people of Japan were told via radio broadcast that he devastation of a new weapon had been visited upon the United States’ cities similar to the devastation after (I believe the names were) Fat Man and Little Boy had been dropped. Propaganda is / was a chief weapon, as in any War. Japan was realizing the devastation one plane could deliver. The moral of Japan’s people needed a boost, per the continue the War effort supporters. War is a Monster, but to Win a War, terrible things must be done. Thankfully, Japan opted to surrender, and the War supporters were not successful.
One interesting aspect of the atomic bombings of Japan is the fact that we experimented with uranium on Hiroshima and with plutonium on Nagasaki. I once read that the incidence of leukemia was significantly higher in Hiroshima versus Nagasaki during the 15 years following the bombings. Then I read somewhere else that that was a myth.