I've done considerable research in order to find such depictions, but found almost nothing, I have list of about 3 novels so far, one of which is a manga (I want novels or war diaries). I used bookmeter.com, honto.jp and other websites dedicated to book reviews using google search + a list of keywords, but found not much at all. I also searched through twitter (google doesn't index tweets), but didn't find much again. Finally I searched using the National Diet Library's search function, but didn't find much ; however that's because a lot of the books that might contain such scenes are not available online, or on amazon.jp, and I can't use yahoo auctions ; some of them too are simply only findable on the NDL.
I would be extremely grateful if you Japanese people could help me with this, my Japanese is ok so I was able to search for a while, but now I'm at my limit, I think.