War Tour

The War Tour was a concert tour by the Irish rock band U2, which took place in 1982 and 1983 in support of the group's third album War. The tour took place in Western Europe, the United States, Canada and Japan, with new material from War taking an increasing role as the tour progressed. Venues were mostly halls, but some arenas were introduced later on. U2's performances were very well received both critically and commercially, especially in the United States where U2 broke through to become a major act. Scenes of lead singer Bono waving a white flag during the song "Sunday Bloody Sunday" became an emblematic image of this phase of U2's career. It was their first tour as full-time headlining act and their first to be profitable.

The live album Under a Blood Red Sky and the concert film U2 Live at Red Rocks: Under a Blood Red Sky both originated from performances on the tour. The latter matched U2's concert fervour with the spectacular natural setting of the Red Rocks Amphitheatre in the rain to produce a memorable document of the War Tour and to further increase the group's popularity; U2's filming of the Red Rocks show was later selected by Rolling Stone magazine as one of the "50 Moments that Changed the History of Rock and Roll".