I started listening to Dan Carlin’s Hardcore History recently and I’m now on episode 42 dealing with the morality of dropping the atomic bombs in World War II.
If you’re at all upset by graphic descriptions of war you don’t want to listen to this or read the following which Dan quoted in the episode.

The rain of large sparks, blowing down the street, were each as large as a five-mark piece. I struggled to run against the wind but could only reach a house on the corner of the Sorbenstrasse . . . .[We] couldn’t go on across the Eiffestrasse because the asphalt road had melted. There were people on the roadway, some already dead, some still lying alive but stuck in the asphalt. They must have rushed onto the roadway without thinking. Their feet had got stuck and then they had put out their hands to try to get out again. They were on their hands and knees screaming.
Kate Hoffmeister, then nineteen, on the firestorm in Hamburg in 1943 (source)
Yeah my grampy was in London and sometimes told stories of the bombings there. Just the stuff he thought we could handle.
You have to listen to the podcasts on war on the Eastern Front.
Some of the scariest stuff I have listened to.
After the podcast today I don’t think I can. Just listening to my son idly talking about a fire burning some wood made me think of the firestorms described in it!