Opinions on kanonenfieber?

I really dig the way these guys sound and the ww1 theme but without knowing the English translation it feels like the songs are definitely of a more sinister tone if that makes sense from the research I've done they dont support and extremist group and there more honoring the lives lost in ww1 but I wanna get others opinion

Here's a link to there Spotify

https://open.spotify.com/artist/5VI8SBEX7uSvoHsdI5xNVJ?si=27Uhy67TRAmfpowDCXSsHA