"Waiting on a War" is an "aching"
folk rock ballad, that starts as acoustic
pop rock, but transitions into 1970s
hard rock on the outro. Most of the song is composed primarily of Grohl singing over an
acoustic guitar, bass, and drums, and strings, before building in intensity in its second half, and moving into an energetic, full-band rock sound with
electric guitars for the last minute. The lyrical content was inspired by bleak conversation Grohl had had with his own daughter Harper Grohl, in 2019, which reminded him of his own worries about the world: Grohl later explained that he himself had feared the effect of
the Cold War while growing up in Washington DC. ==Music video==