According to Pitchfork:
Nick Cave and Warren Ellis (of the Bad Seeds and Grinderman) have a robust history of putting their music to film, and they’ve added to that repertoire with yet another film score. The pair have composed the soundtrack for the forthcoming Netflix film, War Machine, a representative for the artists confirmed to Pitchfork. Jake Jackson and David Michod also contributed.
Not surprised David is involved with the music, we know how important it is to him to create moods.
“War Machine” debuts on Netflix 26 May 2017.