Lead vocalist Tim McIlrath wrote the music and lyrics for "Hero of War" during the recording sessions of Rise Against's fifth album Appeal to Reason.
Toward the completion of Appeal to Reason, McIlrath thought to include an acoustic song he had written earlier in the sessions, but was not sure if it would fit with the rest of the hardcore music on the album.
Tim McIlrath wrote this song due to the violence in the war, but also for the troops that serve overseas protecting their respective countries.
The video fades between lead singer Tim McIlrath sitting and singing the song while playing the acoustic guitar, and shots of soldiers in war.
The video ends with the soldier walking down a street, bare-chested, with paint on his face, while sirens go off in the background, implying he had descended into violence due to PTSD while in normal society.