I didn't really expect any explanation from the get-go. It's atmospheric and impressionistic, not rational nor logical. It already had its thing and trying to explain things could have ruined the experience. Good read. And thanks for the translation.
I can't even get through the first chapter. I took a peak at the RAW page and apparently, LN has over 1100 chapters and I see some people saying that it's a masterpiece. I don't understand. All I can see is an incompetent author making up stuffs about military so he could write some shitty pew...