One other piece of WW2 history that hasn't received a lot of attention:
Deadly WWII U.S. firebombing raids on Japanese cities largely ignored
From January 1944 until August 1945, the U.S. dropped 157,000 tons of bombs on Japanese cities, according to the U.S. Strategic Bombing Survey. It estimated that 333,000 people were killed, including the 80,000 killed in the Aug. 6 Hiroshima atomic bomb attack and 40,000 in Nagasaki three days later. Other estimates are significantly higher. Fifteen million of the 72 million Japanese were left homeless.
The bombing campaign set a military precedent for targeting civilian areas that persisted into the Korean and Vietnam wars and beyond. But the non-atomic attacks have been largely overlooked.