Peace on Earth

Two young squirrels ask their grandfather on Christmas Eve who the “men” are in the lyric “Peace on Earth, good will to men.” The grandfather squirrel then tells them a rotoscoped history of the human race, focusing on the neverending wars men waged. Ultimately the wars do end, with the deaths of the last men on Earth, two soldiers shooting each other. Afterwards, the surviving animals discover a copy of the Bible in the ruins of a church. Inspired by the book’s teachings, they decide to rebuild a society dedicated to peace and nonviolence (using the helmets of soldiers to construct houses). The cartoon features an original song written to the tune of "Hark! The Herald Angels Sing. —Wikipedia