Peace on Earth Two baby squirrels ask grandpa to explain what "men" are when he comes in singing "peace on earth, goodwill to men". Grandpa tells the story of man's last war. This classic animation short was an Academy Award Best Short Subject, Cartoons nominee. Details Casts Galleries Posters Title Peace on Earth Release Date 1939-12-09 Runtime 00 Hours 09 Minutes Genres Animation War Production Companies MGM Cartoon Studio, Metro-Goldwyn-Mayer Production Countries United States of America Mel Blanc... Voices (uncredited)... Sara Berner... Baby Squirrel (uncredited... Bernice Hansen... Baby Squirrel (uncredited... Original Size (1920x1080) Original Size (600x900) Original Size (1000x1500) Original Size (1000x1500)