Lyric discussion by MNarrative 

Cover art for Gunships lyrics by Bedouin Soundclash

It's a song dedicated to those in the military who died for a lost cause. This song was written/released six years after the Afghanistan invasion, so it's likely to be specifically referring to those people. The meaning is pretty straightforward.

That said, it's a beautiful dedication, both to the living and the dead who fought hard, did their duty, and sacrificed everything for a war that tore our own nation apart.

Song Meaning