"One of my kids, he's 13, and now I'm getting those phone calls: trouble here, homewhere there, disappearing over there - and that's a bit of a challenge, as I now move forward to finishing a record and going on the road. It is a concern."
- Larry Mullen Jr, 2009
Get On Your Boots is about Bono taking his family on vacation to France and witnessing warplanes flying overhead at the start of the Iraq War. The chant "let me in the sound" was developed late in the recording sessions and became a theme throughout parts of the album.