65 years ago to day the first nuclear bomb was used operationally on the city of Hiroshima. The bombing killed 80,000 people outright. The lingering effects have brought the death toll up to 125,000 eventually.
My father was a aircraft engineer during World War II and worked on the design of the tail of the second bomb Fat Boy. He never talked about his work at Los Alamos and considered nuclear weapons pure evil. He was right they are.
The Japanese, by all accounts from their side, were as motivated to surrender by the Russian entry into the war as by the bombing of Hiroshima and Nagasaki. I can think of only one good thing that came out of these bombings, they were the perfect horrible example. 65 years later and no one else has used a nuclear weapon. So keep the memory of the evil that the bombings of Hiroshima and Nagasaki represent and hope that is enough to keep nuclear weapons from ever being used again.