“Snoopy’s Christmas” was much earlier and much less explicit about this actual event from Dec 1914. Both songs show the power of the Christmas songs and Good News to transform our world.  One sad note.  Persico’s history “11th Month, 11th Day, 11th Hour” tells how one German would not participate in the truce.  His name?  Adolph Hitler. [Editors note: For Snoopy’s Christmas check out this link