I just realized why the evangelical Christians like Trump so much: just like their God, when something good happens, Trump did it ("I brought back football!"), and when something bad happens, "it's the crazy Democrats' fault."
I was reading a book about Hiroshima, at a point in the book where a badly wounded lady asks a priest why his God would let such suffering occur, and he tells her that "man is not now in the condition God intended."
Evangelicals want Israel to win, so that G-d can destroy Israel. All the Jews have to get to Tel Aviv so we can all be murdered by G-d, or by his chosen Gentiles. Evangelicals, Nazis and Muslims all agree on this in general outline.
Hiroshima by John Hershey. As far as suffering goes. The people of Tokyo suffered as much from incendiary bombs as Hiroshima did from one blast ... just in a more special way. Why do people suffer? Don't make war on the US, even Yamamoto understood that. Hitler was an idiot, he could have ignored the Japanese and not declared war on the US, and not invaded the Soviet Union. Even at that point he would have won the war.
Originally Hitler was allied with the Republic of China, not the Empire of Japan. He was stupid to change sides, just because the Japanese were so good at murdering Chinese peasants. Hitler vs Stalin, two paranoids trying to out play each other. Let Stalin attack Germany first, play the defensive game. The Russians would have died even more that way, and Germany would have won (because Stalin would have been overthrown by Beria).
I studied nuclear blast effects via public documents when I was in HS. I had a bit of Trinitite, from the first nuclear blast. The correct answer with nukes is ... DON'T DO IT. Human beings are marginal as individuals, we are murderous in groups.