The Butter Battle Book is a rhyming story written by Dr. Seuss. It was published by Random House Books for Young Readers on January 12, 1984. It is an anti-war story; specifically, a parable about arms races in general, mutually assured destruction and nuclear weapons in particular. The Butter Battle Book was a New York Times Notable Book of the Year.This book was written during the Cold War era, and reflects the concerns of the time, especially the perceived possibility that all life on Earth could be destroyed in a nuclear war. It can also be seen as a satirical work, with its depiction of a deadly war based on a senseless conflict over something as trivial as a breakfast food. The concept of a war based on toast is similar to the war between Lilliput and Blefuscu in Jonathan Swift's Gulliver's Travels, which was nominally based on the correct end to crack an egg once soft-boiled.PlotThe Yooks and the Zooks live on opposite sides of a long curving wall. The Yooks wear blue clothes; the Zooks wear orange. The primary dispute between the two cultures is that the Yooks eat their bread with the butter-side up, while the Zooks eat their bread with the butter-side down. The conflict between the two sides leads to an escalating arms race, which results in the threat of mutual assured destruction.