One thing one can't help noticing is the efficacy of religion before the nineteenth century at dealing with these problems and answering some of these unanswerable questions. By the time of the Great War, religion is practically dead. By the time of the Second World War, it's no help at all.
The chaplains that were attached to the infantry that I was in practically never did spiritual work because they knew they'd be ridiculed. What they did was to apply bandages and surgical scissors, assisting the medics and calming people down psychologically. But everybody recognized that religion was no help whatever.