Lyrics? Subject matter?

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What was the message of the song? The lyrics? Was it connected to WWII? There's lots of info about the song's popularity and its producers but nothing about the song itself. Please add something about its words, music, and cultural context. Thanks so much. KC 15:54, 5 July 2016 (UTC) KC 15:54, 5 July 2016 (UTC) — Preceding unsigned comment added by Boydstra (talkcontribs)