I don't see why Nagasaki was a tragedy--or Hiroshima for that matter. In fact, of all the civs in the history of the world, no single group has managed to avoid culpability for its actions than the Japanese of War 2. They killed 300,000 Chinese in three weeks. Raped Nanking, murdered 3 million people and somehow the US always ends up feeling guilty! Why? Because Japan believes it was treated unfairly. You don't like the outcome? Don't start wars! They where worse than the Nazis in terms of how they treated POWs...They've managed to convince the world that we (USA) was just as brutal as they were. They don't even teach that in history books. They refuse to acknowledge their role in War 2, opting to rationalize it by saying, "Let this site (Hiroshima) serve as a reminder of man's inhumanity to man", when it should read, "This is where the 2nd most brutal regime in human history surrendered to the British and American allies who wanted nothing but democracy and freedom"
Second, it saved probably 10 million lives...a million Americans and a good portion of Japan that was hellbent on fighting to the death.
And finally, graph all war deaths and you'll see that it increased geographically or exponentially until Aug, 1945 when it immediately went from 15 million a year (1944) to about 1,000 a year. It taught us that WE HAVE to appeal to what Lincoln called the better angels of our nature.
But that's neither here nor there--I'm like you, I'm always looking at funny things like that in Civ Rev. "Wonder how that battle would look in real life?"