Sunday Bloody Sunday is a politically charged song by U2, released in 1983 as the opening track of their album War. The song addresses the Troubles in Northern Ireland and the violence that occurred on Bloody Sunday in 1972. With its driving drumbeat, powerful guitar riffs, and Bono's impassioned vocals, Sunday Bloody Sunday became a protest anthem and a symbol of resistance. The song's message of peace, justice, and the fight against oppression resonated with audiences worldwide and solidified U2's reputation as socially conscious musicians.