The Cranberries' song "Zombie" is a protest anthem against the violence of the IRA, written by lead singer Dolores O'Riordan after the 1993 Warrington bombings, which killed two young boys. The song expresses grief and anger over the senseless loss of life and the dehumanizing effects of war, with the "zombie" metaphor representing people trapped by violence. O'Riordan clarified that the song was not about religious or political sides but about the universal tragedy of innocent people harmed by terrorism.