"I love being there, I love America, I love the feeling of the wide open spaces, I love the deserts, I love the mountain ranges, I even love the cities. So having fallen in love with America over the years that we've been there on tour, I then had to 'deal with' America and the way it was affecting me, because America's having such an effect on the world at the moment. On this record I had to deal with it on a political level for the first time, if in a subtle way."
- Bono, on the Joshua Tree's thematic inspirations
The song 'Peace On Earth' refers to the August 1998 Omagh city bombing which targeted shoppers and was planted by an extremist group known as the Real IRA.