Vertigo's Polish Flag

Just a little over a year ago, U2 performed in Poland for only the second time. It was at this concert that something incredible happened, quite possibly the most astounding highlight of the Vertigo Tour. At the start of New Year's Day, a song inspired by the Polish anti-communist Solidarity movement, one part of the crowd became a sea of red and the other part a sea of white, creating the impression of the Polish flag.

This is the story of the flag.