
Producer Daniel Lanois says that the most progress on "Bullet the Blue Sky" was made at Melbeach, the Edge's newly purchased home in seaside Monkstown. The Edge said that his guitar playing was also informed by Bono's lyrics. It upset me as a person who read the Scriptures, to think that Christians in America were supporting this kind of thing, this kind of proxy war because of these Communists." In August, after reconvening with his bandmates in Dublin to resume work on The Joshua Tree, Bono instructed the Edge to "put El Salvador through an amplifier", resulting in the song's feedback-based guitar part. I don't think we were in danger, but I knew there were lives in danger or being lost close to us, and I felt for them. He said, "I remember the ground shaking, and I remember the smell, I suppose, of being near a war zone. The trip angered Bono and formed the basis of the song's lyrics. In July 1986, Bono and his wife Ali travelled to Nicaragua and El Salvador, where they saw firsthand the distress of peasants bullied by political conflicts and United States military intervention. Still, the song was discarded for some time until producer Brian Eno, who described it as a "homeless riff", convinced the band it was worth working on. Compared to the final version of the song, the Edge described the demo as "much more bare-boned, like a heavy funk track". After the take was completed, the band listened to playback in the control room and realised that the demo was "absolutely brilliant". He thought to himself, "What the fuck are they doing?", and considered stopping the jam. The guitarist became irritated, as the rhythm section was playing much differently than how he thought they should. Lead vocalist Bono recalled that Clayton was also playing in a different key from the Edge. Bassist Adam Clayton and drummer Larry Mullen Jr.


It eventually became the chorus for "Bullet the Blue Sky". While listening to a song by English rock band the Fall, U2 guitarist the Edge tried to emulate its guitar riff, but instead came up with his own part that was, in his approximation, "uptempo, like real hard-hitting". "Bullet the Blue Sky" first originated as a demo that U2 recorded during a jam session at STS Studios in Dublin with producer Paul Barrett, prior to the proper Joshua Tree recording sessions. Angered by what he witnessed, Bono asked guitarist the Edge to "put El Salvador through an amplifier." "Bullet the Blue Sky" is one of the band's most overtly political songs, with live performances often being heavily critical of political conflicts and violence.

Lyrically, the song was inspired by a trip that lead vocalist Bono made to Nicaragua and El Salvador, where he saw firsthand how local peasants were affected by United States military intervention in the region. " Bullet the Blue Sky" is a song by Irish rock band U2, and is the fourth track from their 1987 album The Joshua Tree.
