U2 in Philadelphia

"In the past, when we went in the studio, we simply didn't know our craft well enough. On 'War', you can hear more of the arrangements coming from a bass-and-drum thing; the rhythm section's standing up. That means Edge doesn't have to play as much. On the first two albums, knowingly or not, he was covering up for a rhythm section that wasn't quite mature. We're a music tougher band now." - Adam on War, 1983