U2's hit "Sunday Bloody Sunday" describes in detail an incident based in what British area?
U2 discography:  The album yielded the singles "Sunday Bloody Sunday" and "New Year's Day" and have since become among the band's most popular songs. Sunday Bloody Sunday:  One of U2's most overtly political songs, its lyrics describe the horror felt by an observer of the Troubles in Northern Ireland, mainly focusing on the Bloody Sunday incident in Derry where British troops shot and killed unarmed civil rights protesters and bystanders.
Derry