Lyric discussion by sonchan 

Cover art for Danger Line lyrics by Avenged Sevenfold

I definitely agree it is about a soldier at war. I particularly like this stanza:

"I do this for my family My daughter loves her daddy Too many talk down on things they don't know"

It just shows the reason most go to war, and how so many people disregard the action or criticize it despite never being in that position.

Great song, but of course that is expected from a7x.