My dude, Teddy Bears as a product were literally named after Theodore "Teddy" Roosevelt. This was mainly because he was a staunch conservationist and outdoorsman, and pretty much established the vast majority of Federal National Parks we have today.
From the looks of things, it's taking four things into account.
First, the previous chapter showed an enemy unit moving over rather rough terrain under the cover of darkness, suggesting that they were either slowly infiltrating No-Man's-Land in preparation for this assault or were moving into a...
The Imperial Japanese Army used this as a common punishment, actually. Officers would beat their subordinates all the time, to the point it kinda disseminated to the grunt troops.
Which, honestly, fits considering the in-story time frame.
Whoa, wait, what the heck?
The head medic frigging broke an ampule and drank from it?! Those are glass! When we use a syringe to pull the drugs out, we need to use a needle with a filter built in because of small glass particulates!