“Happy Xmas (War Is Over),” John Lennon, Yoko Ono, The Plastic Ono Band with the Harlem Community Choir (1971) There isn’t a lot of overlap with Christmas songs and protest music, but John ...

(AP Illustration / Peter Hamlin) War, like love, has long inspired artists and musicians. That is especially true of the songs written in response to the Vietnam War during the countercultural ...